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7490 Decade Counter
18

7490 Decade Counter

Jan 08, 2016

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7490 Decade Counter. Basic Integrated Circuit Counter 7490 Decade Counter. Modifying the count sequence. Modifying the count sequence. Modifying the count sequence. Modifying the count sequence. Modifying the count sequence. Modifying the count sequence. Modifying the count sequence. - PowerPoint PPT Presentation
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Page 1: 7490 Decade Counter

7490 Decade Counter

Page 2: 7490 Decade Counter

Basic Integrated Circuit Counter7490 Decade Counter

Clock

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 3: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 4: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 5: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 6: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 7: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 8: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 9: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 10: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 11: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 12: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 13: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 14: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 15: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 16: 7490 Decade Counter

Modifying the count sequence

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

Page 17: 7490 Decade Counter

Cascading Stages

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

SECONDS(One’s Digit)

SECONDS(Ten’s Digit)

Page 18: 7490 Decade Counter

Cascading Stages

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

R9(1)

CLK A

7490

QA

QB

QC

QD

CLK B

R9(2)

R0(1)

R0(2)

14

7

6

3

2

VCC

GNDInput

5

10

1

12

9

8

11

+5V

SECONDS(One’s Digit)

SECONDS(Ten’s Digit)

??