Embedded Controller ENE IO3731 Battery Charger Intersil ISL9519 System on Chip Marvell PXA2128 1GHz Dual-core ARM +1.35V Power Supply +3.3V Pwr Sup. OLPC XO-4 A2 Prototype Internal microSD slot Accelerometer External SD/MMC Slot +2.8V Pwr Sup. ST LIS3DE VCORE Power Supply Open Firmware Flash ROM USB Hub & Power Switch Audio Codec Realtek ALC5631 eMMC 2 to 32 GB Backlight Power Supply LCD Power Supply +3.3VSUS Power Supply WLAN Marvell 8787 SDIO connect +5V Pwr Sup. Touch Ctrl RAM 128M/256Mx32 x 2 chan DDR3L SDRAM +1.2V Power Supply bottom side RTC Maxim DS1338 +1.8V Power Supply RTC Battery Neonode μC DCON Hymax HX8837 & Mem