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ATmega32084808 ndash 28-pinData Sheet
megaAVRreg 0-series
Introduction
The ATmega3208320948084809 microcontrollers of the megaAVRreg 0-series are using the AVRreg
processor with hardware multiplier running at up to 20 MHz with a wide range of Flash sizes up to 48KB up to 6 KB of SRAM and 256 bytes of EEPROM in 28- 32- or 48-pin package The series uses thelatest technologies from Microchip with a flexible and low-power architecture including Event System andSleepWalking accurate analog features and advanced peripherals
The devices described here offer Flash sizes from 32 KB to 48 KB in a 28-pin package
ndash SleepWalking peripheralsbull Power Down with limited wake-up functionality
bull Peripheralsndash One 16-bit TimerCounter type A with dedicated period register three compare channels (TCA)ndash Three 16-bit TimerCounter type B with input capture (TCB)ndash One 16-bit Real Time Counter (RTC) running from external crystal or internal RC oscillatorndash Three USART with fractional baud rate generator autobaud and start-of-frame detectionndash Masterslave Serial Peripheral Interface (SPI)ndash Dual mode MasterSlave TWI with dual address match
bull Standard mode (Sm 100 kHz)bull Fast mode (Fm 400 kHz)bull Fast mode plus (Fm+ 1 MHz)
ndash Event System for CPU independent and predictable inter-peripheral signalingndash Configurable Custom Logic (CCL) with up to four programmable Lookup Tables (LUT)ndash One Analog Comparator (AC) with scalable reference inputndash One 10-bit 150 ksps Analog to Digital Converter (ADC)ndash Five selectable internal voltage references 055V 11V 15V 25V and 43Vndash CRC code memory scan hardware
bull Optional automatic scan after resetndash Watchdog Timer (WDT) with Window Mode with separate on-chip oscillatorndash External interrupt on all general purpose pins
bull IO and Packagesndash 23 programmable IO linesndash 28-pin SSOP
Temperature Range -40degC to 125degCbull Speed Grades
4 IO Multiplexing and Considerations841 Multiplexed Signals 8
5 Electrical Characteristics 951 Absolute Maximum Ratings 952 General Operating Ratings 953 Power Considerations 1054 Power Consumption 1155 Peripherals Power Consumption1256 BOD and POR Characteristics1357 External Reset Characteristics1458 Oscillators and Clocks1459 IO Pin Characteristics17510 VREF18511 ADC19512 AC 22513 UPDI Timing 23
6 Typical Characteristics2461 Power Consumption2462 GPIO 3263 VREF Characteristics3964 BOD Characteristics4165 ADC Characteristics4466 AC Characteristics5467 OSC20M Characteristics5668 OSCULP32K Characteristics 58
7 Package Drawings6071 28-Pin SSOP60
8 Conventions6281 Memory Size and Type6282 Frequency and Time62
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
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To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
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The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ndash SleepWalking peripheralsbull Power Down with limited wake-up functionality
bull Peripheralsndash One 16-bit TimerCounter type A with dedicated period register three compare channels (TCA)ndash Three 16-bit TimerCounter type B with input capture (TCB)ndash One 16-bit Real Time Counter (RTC) running from external crystal or internal RC oscillatorndash Three USART with fractional baud rate generator autobaud and start-of-frame detectionndash Masterslave Serial Peripheral Interface (SPI)ndash Dual mode MasterSlave TWI with dual address match
bull Standard mode (Sm 100 kHz)bull Fast mode (Fm 400 kHz)bull Fast mode plus (Fm+ 1 MHz)
ndash Event System for CPU independent and predictable inter-peripheral signalingndash Configurable Custom Logic (CCL) with up to four programmable Lookup Tables (LUT)ndash One Analog Comparator (AC) with scalable reference inputndash One 10-bit 150 ksps Analog to Digital Converter (ADC)ndash Five selectable internal voltage references 055V 11V 15V 25V and 43Vndash CRC code memory scan hardware
bull Optional automatic scan after resetndash Watchdog Timer (WDT) with Window Mode with separate on-chip oscillatorndash External interrupt on all general purpose pins
bull IO and Packagesndash 23 programmable IO linesndash 28-pin SSOP
Temperature Range -40degC to 125degCbull Speed Grades
4 IO Multiplexing and Considerations841 Multiplexed Signals 8
5 Electrical Characteristics 951 Absolute Maximum Ratings 952 General Operating Ratings 953 Power Considerations 1054 Power Consumption 1155 Peripherals Power Consumption1256 BOD and POR Characteristics1357 External Reset Characteristics1458 Oscillators and Clocks1459 IO Pin Characteristics17510 VREF18511 ADC19512 AC 22513 UPDI Timing 23
6 Typical Characteristics2461 Power Consumption2462 GPIO 3263 VREF Characteristics3964 BOD Characteristics4165 ADC Characteristics4466 AC Characteristics5467 OSC20M Characteristics5668 OSCULP32K Characteristics 58
7 Package Drawings6071 28-Pin SSOP60
8 Conventions6281 Memory Size and Type6282 Frequency and Time62
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
4 IO Multiplexing and Considerations841 Multiplexed Signals 8
5 Electrical Characteristics 951 Absolute Maximum Ratings 952 General Operating Ratings 953 Power Considerations 1054 Power Consumption 1155 Peripherals Power Consumption1256 BOD and POR Characteristics1357 External Reset Characteristics1458 Oscillators and Clocks1459 IO Pin Characteristics17510 VREF18511 ADC19512 AC 22513 UPDI Timing 23
6 Typical Characteristics2461 Power Consumption2462 GPIO 3263 VREF Characteristics3964 BOD Characteristics4165 ADC Characteristics4466 AC Characteristics5467 OSC20M Characteristics5668 OSCULP32K Characteristics 58
7 Package Drawings6071 28-Pin SSOP60
8 Conventions6281 Memory Size and Type6282 Frequency and Time62
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified