W26020A

128K

× 16 HIGH-SPEED CMOS STATIC RAM

Publication Release Date: July 1998

- 1 -

Revision A3

GENERAL DESCRIPTION

The W26020A is a high-speed, low-power CMOS static RAM organized as 131,072

× 16 bits that

operates on a single 5-volt power supply. This device is manufactured using Winbond's high

performance CMOS technology.

The W26020A has an active low chip select, separate upper and lower byte selects, and a fast output

−

I/O16, the upper byte. This device is well suited for use in high-density, high-speed system

applications.

FEATURES

− Active: 1.5W (max.)

+5V power supply

− No clock or refreshing

PIN CONFIGURATION

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

A0

A1

A2

A3

A4

CS

I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

I/O8

WE

A5

A6

A7

A8

A16

A9

A10

A11

A12

A13

NC

I/O9

I/O10

I/O11

I/O12

I/O13

I/O14

I/O15

I/O16

LB

UB

OE

A14

A15

NC

BLOCK DIAGRAM

A0

.

.

A16

I/O1

I/O16

.

.

DATA I/O

DECODER

CONTROL

UB

CS

OE

WE

LB

CORE

ARRAY

PIN DESCRIPTION

SYMBOL

DESCRIPTION

A0

−A16

Address Inputs

I/O1

−I/O16

Data Inputs/Outputs

CS

Chip Select Inputs

WE

Write Enable Input

OE

Output Enable Input

LB

Lower Byte Select I/O1

−I/O8

UB

Upper Byte Select I/O9

−I/O16

Power Supply

Ground

NC

No Connection