M21L216128A-12J datasheet(1/14 Pages) ETC1

Part #	M21L216128A-12J

Description	128 K x 16 SRAM HIGH SPEED CMOS SRAM

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M21L216128A

Elite Semiconduture Memory Technology Inc

Publication Date : Sep. 2000

Revision : 1.0

1/14

SRAM

128 K x 16 SRAM

HIGH SPEED CMOS SRAM

FEATURES

ORDERING INFORMATION

T Fast access times : 10, 12, and 15ns

T Fast OE access times : 5, 6, and 7ns

T Single +3.3V ± 0.3V power supply

T Fully static -- no clock or timing strobes necessary

T All inputs and outputs are TTL-compatible

T Three state outputs

T Center power and ground pins for greater noise immunity

T Easy memory expansive with CE and OE options

T Automatic CE power down

T

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44-pin 400mil SOJ

44-pin 400mil TSOP (TypeII)

PRODUCT NO.

Acess Time

(ns)

PACKING

TYPE

M21L216128A-10J

SOJ

M21L216128A-10T

10

TSOP

M21L216128A-12J

SOJ

M21L216128A-12T

12

TSOP

M21L216128A-15J

SOJ

M21L216128A-15T

15

TSOP

GENERAL DESCRIPTION

The M21L216128A is

a high

speed,

low

power

asynchronous

SRAM

containing

2,097,152

bits

and

organized as 131,072 by 16 bits, it is produced by high

performance CMOS process.

This

device offers center power and ground pins for

improved performance and noise immunity. Static design

eliminates the need for external clocks or timing strobes. For

increased system flexibility and eliminating bus contention

problems, this device offers chip enable ( CE ), separate byte

enable controls ( LB and HE ) and output enable ( OE ) with this

organization.

PIN ASSIGNMENT

SOJ Top View

TSOP (TypeII) Top View

1

2

3

4

5

6

7

8

9

A4

A3

A2

A1

A0

CE

DQ1

DQ2

DQ3

44

43

42

41

40

39

38

37

36

A5

A6

A7

OE

HB

LB

DQ 1 6

DQ 1 5

DQ 1 4

10

11

12

13

14

15

16

17

18

19

20

21

22

DQ 4

VC C

GN D

DQ 5

DQ 6

DQ 7

DQ 8

WE

A1 6

A1 5

A1 4

A1 3

A1 2

35

34

33

32

31

30

29

28

27

26

25

24

23

DQ 1 3

GN D

VC C

DQ 1 2

DQ 1 1

DQ 1 0

DQ9

NC

A8

A9

A10

A11

NC

1

2

3

4

5

6

7

8

9

1 0

1 1

A4

A3

A2

A1

A0

CE

DQ 1

DQ 2

DQ 3

DQ 4

VC C

GN D

DQ 5

DQ 6

DQ 7

DQ 8

WE

A1 6

A1 5

A1 4

A1 3

A1 2

4 4

4 3

4 2

4 1

4 0

3 9

3 8

3 7

3 6

3 5

3 4

A5

A6

A7

OE

HB

LB

DQ 1 6

DQ 1 5

DQ 1 4

DQ 1 3

GN D

VC C

DQ 1 2

DQ 1 1

DQ 1 0

DQ 9

NC

A8

A9

A1 0

A1 1

NC

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

2 0

2 1

2 2

3 3

3 2

3 1

3 0

2 9

2 8

2 7

2 6

2 5

2 4

2 3

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