Integrated Device Technology, Inc.

FEATURES

• High-density 1M/512K CMOS Dual-Port Static RAM

module

• Fast access times:

—Commercial 35, 40ns

—Military 40, 50ns

• Fully asynchronous read/write operation from either port

• Full on-chip hardware support of semaphore signaling

between ports

• Surface mounted LCC (leadless chip carriers) compo-

nents on a 64-pin sidebraze DIP (Dual In-line Package)

• Multiple Vcc and GND pins for maximum noise immunity

• Single 5V (

±10%) power supply

• Input/outputs directly TTL-compatible

DESCRIPTION:

The IDT7M1001/IDT7M1003 is a 128K x 8/64K x 8 high-

speed CMOS Dual-Port Static RAM module constructed on a

multilayer ceramic substrate using eight IDT7006 (16K x 8)

Dual-Port RAMs and two IDT FCT138 decoders or depopu-

lated using only four IDT7006s and two decoders.

This module provides two independent ports with separate

control, address, and I/O pins that permit independent and

asynchronous access for reads or writes to any location in

memory. System performance is enhanced by facilitating

port-to-port communication via semaphore (

SEM) “hand-

shake” signaling. The IDT7M1001/1003 module is designed

to be used as stand-alone Dual-Port RAM where on-chip

hardware port arbitration is not needed. It is the users re-

sponsibility to ensure data integrity when simultaneously

accessing the same memory location from both ports.

The IDT7M1001/1003 module is packaged on a multilayer

co-fired ceramic 64-pin DIP (Dual In-line Package) with di-

mensions of only 3.2" x 0.62" x 0.38". Maximum access times

as fast as 35ns over the commercial temperature range are

available.

All inputs and outputs of the IDT7M1001/1003 are TTL-

compatible and operate from a single 5V supply. Fully asyn-

chronous circuitry is used, requiring no clocks or refreshing for

operation of the module.

All IDT military module semiconductor components are

manufacured in compliance with the latest revision of MIL-

STD-883, Class B, making them ideally suited to applications

demanding the highest level of performance and reliability.

128K x 8

64K x 8

CMOS DUAL-PORT

STATIC RAM MODULE

IDT7M1001

IDT7M1003

Left Port

Right Port

Description

Address Inputs

Data Inputs/Outputs

R/

R/

Read/Write Enables

Chip Select

Output Enable

Semaphore Control

Power

GND

Ground

2804 tbl 01

MILITARY AND COMMERCIAL TEMPERATURE RANGES

MARCH 1995

©1995 Integrated Device Technology, Inc.

DSC-7066/5

7.5

1

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

®

PIN NAMES

DIP

TOP VIEW

GND

GND

R/

R/

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

30

31

32

58

57

56

55

54

53

52

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

60

59

61

62

63

64

GND

GND

51

2804 drw 01

NOTE:

1. For the IDT7M1003 (64K x 8) version, Pins 23 and 43 must be connected

to GND for proper operation of the module.