2703 drw 01

31

29

9

11

13

15

17

19

21

23

25

1

3

5

7

27

33

63

61

41

43

45

47

49

51

53

55

57

35

37

39

59

– GND

– GND

32

30

28

8

10

12

14

16

18

20

22

24

2

4

6

26

34

64

62

42

44

46

48

50

52

54

56

58

36

38

40

60

GND

GND

WE

OE

GND

GND

FEATURES:

• High density 1 megabyte static RAM module

(IDT7MP4145 upgradeable to 4 megabyte, IDT7MP4120)

• Low profile 64 pin ZIP (Zig-zag In-line vertical Package)

or 64 pin SIMM (Single In-line Memory Module) for

IDT7MP4045 and 72 pin SIMM (Single In-line Memory

Module) for IDT7MP4145

• Very fast access time: 15ns (max.)

• Surface mounted plastic components on an epoxy

laminate (FR-4) substrate

• Single 5V (

±10%) power supply

• Multiple GND pins and decoupling capacitors for maxi-

mum noise immunity

• Inputs/outputs directly TTL-compatible

PIN NAMES

Data Inputs/Outputs

Addresses

Chip Selects

WE

Write Enable

OE

Output Enable

Depth Identification

Power

GND

Ground

NC

No Connect

2703 tbl 01

Integrated Device Technology, Inc.

COMMERCIAL TEMPERATURE RANGE

SEPTEMBER 1996

©1996 Integrated Device Technology, Inc.

DSC-2703/7

1

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

NOTE:

has a 256K depth.

DESCRIPTION:

The IDT7MP4045/4145 is a 256K x 32 static RAM module

constructed on an epoxy laminate (FR-4) substrate using 8

256K x 4 static RAMs in plastic SOJ packages. Availability of

four chip select lines (one for each group of two RAMs)

provides byte access. The IDT7MP4045 is available with

access time as fast as 10ns with minimal power consumption.

The IDT7MP4045 is packaged in a 64 pin FR-4 ZIP (Zig-

zag In-line vertical Package)or a 64 pin SIMM (Single In-line

Memory Module) where as the 7MP4145 is packaged in a 72

pin SIMM (Single In-line Memory Module). The 4045 ZIP

configuration allows 64 pins to be placed on a package 3.65

inches long and 0.365 inches wide. The 7MP4045 ZIP is only

0.585 inches high, this low profile package is ideal for systems

with minimum board spacing while the SIMM configuration

allows use of edge mounted sockets to secure the module.

All inputs and outputs of the IDT7MP4045/4145 are TTL-

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

chronous circuitry requires no clocks or refresh for operation

and provides equal access and cycle times for ease of use.

Identification pins are provided for applications in which

different density versions of the module are used. In this way,

determine a 256K depth.

The contact pins are plated with 100 micro-inches of nickel

covered by 30 micro-inches minimum of selective gold.

ZIP, SIMM

TOP VIEW

FUNCTIONAL BLOCK DIAGRAM

OE

WE

2703 drw 02

8

18

256K x 32

RAM

8

8

8

2

ADDRESS

PD

IDT7MP4045

IDT7MP4145

256K x 32

CMOS STATIC RAM MODULE

15.2