1

White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

White Electronic Designs

EDI88128C

April 2005

Rev. 17

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

128Kx8 MONOLITHIC SRAM, SMD 5962-89598

FEATURES

Access Times of 70, 85, 100ns

Available with Single Chip Selects (EDI88128) or

Dual Chip Selects (EDI88130)

2V Data Retention (LP Versions)

CS# and OE# Functions for Bus Control

TTL Compatible Inputs and Outputs

Fully Static, No Clocks

Organized as 128Kx8

Industrial, Military and Commercial Temperature

Ranges

Thru-hole and Surface Mount Packages JEDEC

Pinout

• 32 pin Ceramic DIP, 0.6 mils wide (Package 9)

• 32 lead Ceramic SOJ (Package 140)

Single +5V (±10%) Supply Operation

PIN DESCRIPTION

I/O0-7

Data Inputs/Outputs

A0-16

Address Inputs

WE#

Write Enable

CS1#, CS2

Chip Selects

OE#

Output Enable

Power (+5V ±10%)

Ground

NC

Not Connected

BLOCK DIAGRAM

FIGURE 1 – PIN CONFIGURATION

The EDI88128C is a high speed, high performance,

Monolithic CMOS Static RAM organized as 128Kx8.

The device is also available as EDI88130C with an

additional chip select line (CS2) which will automatically

power down the device when proper logic levels are

applied.

The second chip select line (CS2) can be used to provide

system memory security during power down in non-battery

backed up systems and simplifiy decoding schemes in

memory banking where large multiple pages of memory

are required.

The EDI88128C and the EDI88130C have eight bi-

directional input-output lines to provide simultaneous

access to all bits in a word. An automatic power down

feature permits the on-chip circuitry to enter a very low

standby mode and be brought back into operation at a

speed equal to the address access time.

Low power versions, EDI88128LP and EDI88130LP, offer

a 2V data retention function for battery back-up opperation.

Military product is available compliant to Appendix A of

MIL-PRF-38535.

32 DIP

32 SOJ

* Pin 30 is NC for 88128 or CS2 for 88130.

Top View

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

A15

NC/CS2*

WE#

A13

A8

A9

A11

OE#

A10

CS1#

I/O7

I/O6

I/O5

I/O4

I/O3

NC

A16

A14

A12

A7

A6

A5

A4

A3

A2

A1

AØ

I/OØ

I/O1

I/O2

WE#

CS1#

CS2

OE#