SAE81C52 datasheet(3/10 Pages) SIEMENS

Part #	SAE81C52

Description	256 x 8-Bit Static CMOS RAM NMOS-Compatible

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

Direct Link	http://www.siemens.com/

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SAE 81C52

Semiconductor Group

3

Pin Definitions and Functions

SAE 81C52 G

SAE 81C52 P

Symbol

Function

Pin No.

1, 2, 4, 5, 6

7, 12, 14

1 … 6

10, 11

AD0 … 7

Address/data lines

15

12

CS1

Chip select 1 (standby)

active low;

inhibits all lines including control lines

16

13

ALE

Address latch enable

17

19

14

15

WR

RD

Write enable

Read enable

20

16

V

DD

Power supply

97

V

SS

GND (0 V)

10

11

8

9

CS2

CS3

Chip select 2;

inhibits control inputs RD, WR

Counterpart to CS2

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SAE81C52 Datasheet(PDF) 3 Page - Siemens Semiconductor Group

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