ICM7217AIPI datasheet(2/19 Pages) INTERSIL

Part #	ICM7217AIPI

Description	4-Digit LED Display, Programmable Up/Down Counter

Download	19 Pages

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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2 / 19 page

9-13

Pinouts

Functional Block Diagram

ICM7217 (PDIP)

COMMON ANODE

TOP VIEW

ICM7217 (CERDIP)

COMMON CATHODE

TOP VIEW

CARRY/BORROW

ZERO

EQUAL

BCD I/O 8s

BCD I/O 4s

BCD I/O 2s

BCD I/O 1s

COUNT INPUT

STORE

UP/DOWN

LOAD REGISTER/OFF

LOAD COUNTER/I/O OFF

SCAN

RESET

D1

D3

D4

VDD

DISPLAY CONT.

SEG

b

SEG

e

SEG

f

SEG

d

SEG

a

SEG

c

D2

SEG

g

VSS

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

ICM7217

ICM7217B

CARRY/BORROW

ZERO

EQUAL

BCD I/O 8s

BCD I/O 4s

BCD I/O 2s

BCD I/O 1s

COUNT INPUT

STORE

UP/DOWN

LOAD REGISTER/OFF

LOAD COUNTER/I/O OFF

SCAN

RESET

SEG

d

SEG

f

SEG

c

VDD

SEG

a

SEG

g

VSS

D1

D2

D3

D4

SEG

b

SEG

e

DISPLAY CONT.

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

ICM7217A

ICM7217C

T.G.

D4

10

RS

ZERO

U/D

CL CARRY

T.G.

LATCH

MUX

4

T.G.

D2

10

RS

ZERO

U/D

CL CARRY

T.G.

LATCH

MUX

4

T.G.

D3

10

RS

ZERO

U/D

CL CARRY

T.G.

LATCH

MUX

4

T.G.

D1

10

RS

ZERO

U/D

CL CARRY

T.G.

LATCH

MUX

4

1

2

3

4

T.G.

4

D1

COMP.

4

REG.

1

2

3

4

12

3

4

12

3

4

T.G.

4

D2

COMP.

4

REG.

4

T.G.

4

D3

COMP.

4

REG.

4

T.G.

4

D4

COMP.

4

REG.

4

BDC

I/O

8

s

4

s

2

s

1

s

ZERO

UP/DN

COUNT

VDD

VSS

SEGMENT DECODER

SEGMENT DRIVERS

(7)

DIGIT DRIVERS

(4)

A

D4

D3

D2

D1

DISPLAY BLANK + OFF

G

B

C

D

E

F

MUX.

OSCILLATOR

MUX. I/O

AND

DISPLAY

CONTROL

LOGIC

4

DIGIT MUX

SCAN

DISPLAY

LOAD

RESET

STORE

EQUAL

CARRY/BARROW

CONTROL

REGISTER

COUNTER

L.R.

L.C.

RESET

BCD I/O INPUTS

COM. ANODE: PULL DOWN

COM. CATHODE: PULL UP

VDD

VSS

VDD

VSS

VDD

VSS

ICM7217

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ICM7217AIPI Datasheet(PDF) 2 Page - Intersil Corporation

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