128K x 8 SRAM
MSM8128 - 70/85/10/12
11403 West Bernado Court, Suite 100, San Diego, CA 92127.
Tel No: (001) 858 674 2233, Fax No: (001) 858 674 2230
Issue 4.4 : February 2000
Description
The MSM8128 is a 1Mbit monolithic SRAM
organised as 128K x 8. It is currently available in
2 standard formats, with access times of 70, 85,
100, 120ns. It has a low power standby version
and has 3.0V battery backup capability. It is
directly TTL compatible and has common data
inputs and outputs.
Two pinout variants (single and dual CS) are
available.
All versions may be screened in accordance with
MIL-STD-883.
131,072 x 8 CMOS Static RAM
Features
Access Times of 70/85/100/120 ns
JEDEC standard Dual CS footprints.
Operating Power
550 mW (max)
Low Power Standby (-L) 2.2 mW (max)
Low Voltage Data Retention.
Completely Static Operation
Directly TTL compatible.
May be processed in accordance with MIL-STD-883
Block Diagram
Pin Definition
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
GND
1
2
3
4
5
6
7
8 TOP VIEW
S,V
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
A15
CS2
WE
A13
A8
A9
A11
OE
A10
CS1
D7
D6
D5
D4
D3
MEMORY ARRAY
512 X 2048
Package Details
Pin Count
Description
32
32
0.6" Dual-in-Line (DIP)
0.1" Vertical-in-LIne (VIL
TM
)
Package Type
S
V
Package details on pages 8 & 9.
See Page 9 for SX, VX
Pin Functions
A0-A16
Address Inputs
D0-7
Data Input/Output
CS1
Chip Select 1
CS2
Chip Select 2
OE
Output Enable
WE
Write Enable
NC
No Connect
V
CC
Power (+5V)
GND
Ground
MOSAIC [ MOSAIC ]
