DS1744/DS1744P Y2K-Compliant, Nonvolatile Timekeeping RAMs

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PIN DESCRIPTION

PIN

NAME

FUNCTION

EDIP

PowerCap

1

32

A14

Address Input

2

30

A12

3

25

A7

4

24

A6

5

23

A5

6

22

A4

7

21

A3

8

20

A2

9

19

A1

10

18

A0

21

28

A10

23

29

A11

24

27

A9

25

26

A8

26

31

A13

11

16

DQ0

Data Input/Output

12

15

DQ1

13

14

DQ2

15

13

DQ3

16

12

DQ4

17

11

DQ5

18

10

DQ6

19

9

DQ7

14

17

GND

Ground

20

8

CE

Active-Low Chip-Enable Input

22

7

OE

Active-Low Output-Enable Input

27

6

WE

Active-Low Write-Enable Input

28

5

Power-Supply Input

—

4

RST

Active-Low Reset Output, Open Drain. Requires a pullup resistor for

proper operation.

—

1, 2, 3, 33,

34

N.C.

No Connection

—

X1, X2,