V62C21164096LL-70B datasheet(2/10 Pages) MOSEL

Part #	V62C21164096LL-70B

Description	256K x 16, 0.20 um CMOS STATIC RAM

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Manufacturer	MOSEL [Mosel Vitelic, Corp]

Direct Link	http://www.moselvitelic.com

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V62C21164096 Rev. 1.6 October 2001

MOSEL VITELIC

V62C21164096

Pin Descriptions

A0–A17

Address Inputs

These 18 address inputs select one of the 256K x

16 bit segments in the RAM.

CE1,CE2* Chip Enable Inputs

CE1 is active LOW and CE2 is active HIGH. Both

chip enables must be active to read from or write to

the device. If either chip enable is not active, the

device is deselected and is in a standby power

mode. The I/O pins will be in the high-impedance

state when deselected.

OE

Output Enable Input

The output enable input is active LOW. With chip

enabled, when OE is Low and WE High, data will

be presented on the I/O pins. The I/O pins will be in

the high impedance state when OE is High.

UBE,LBE

Byte Enable

Active low inputs. These inputs are used to enable

the upper or lower data byte.

WE

Write Enable Input

The write enable input is active LOW and controls

read and write operations. With the chip enabled,

when WE is HIGH and OE is LOW, output data will

be present at the I/O pins; when WE is LOW and

OE is HIGH, the data present on the I/O pins will be

written into the selected memory locations.

I/O1–I/O16

Data Input and Data Output Ports

These 16 bidirectional ports are used to read data

from and write data into the RAM.

VCC

Power Supply

GND

Ground

Pin Configurations (Top View)

44-Pin TSOP-II (Standard)

48 BGA

A4

A3

A2

A1

A0

CE

1

I/O1

I/O2

I/O3

I/O4

VCC

GND

I/O5

I/O6

I/O7

I/O8

WE

A15

A14

A13

A12

A16

A5

A6

A7

OE

UBE

LBE

I/O16

I/O15

I/O14

I/O13

GND

VCC

I/O12

I/O11

I/O10

I/O9

NC

A8

A9

A10

A11

A17

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

A

1

234

56

1

Note: NC means no connect.

23

4

5

6

B

C

D

E

F

G

H

TOP VIEW

A

BLE

I/O9

I/O10

B

C

D

E

F

G

H

VSS

VCC

I/O15

I/O16

NC

OE

BHE

I/O11

I/O12

I/O13

I/O14

NC

A8

A0

A3

A5

A17

NC

A14

A12

A9

A1

A4

A6

A7

A16

A15

A13

A10

A2

CE1

I/O2

I/O4

I/O5

I/O6

WE

A11

CE2

I/O1

I/O3

VCC

VSS

I/O7

I/O8

NC

*CE2 is available on BGA package only.

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