AS7C34098-10TC datasheet(1/10 Pages) ALSC

Part #	AS7C34098-10TC

Description	5V/3.3V 256K x 16 CMOS SRAM

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Manufacturer	ALSC [Alliance Semiconductor Corporation]

Direct Link	https://www.alliancememory.com

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1 / 10 page

January 2005

®

AS7C4098

AS7C34098

5V/3.3V 256K × 16 CMOS SRAM

1/13/05; v.1.9

Alliance Semiconductor

P. 1 of 10

Features

• AS7C4098 (5V version)

• AS7C34098 (3.3V version)

• Industrial and commercial temperature

• Organization: 262,144 words × 16 bits

• Center power and ground pins

• High speed

- 10/12/15/20 ns address access time

- 5/6/7/8 ns output enable access time

• Low power consumption: ACTIVE

- 1375 mW (AS7C4098)/max @ 12 ns

- 576 mW (AS7C34098)/max @ 10 ns

• Low power consumption: STANDBY

- 110 mW (AS7C4098)/max CMOS

- 72 mW (AS7C34098)/max CMOS

• Individual byte read/write controls

• Easy memory expansion with CE, OE inputs

• TTL- and CMOS-compatible, three-state I/O

• 44-pin JEDEC standard packages

- 400-mil SOJ

- TSOP 2

• ESD protection

≥ 2000 volts

• Latch-up current

≥ 100 mA

Logic block diagram

1024 × 256 × 16

Array

(4,194,304)

OE

CE

WE

Column decoder

A0

A1

A2

A3

A4

A6

A7

A8

VCC

GND

A12

A13

Control circuit

I/O1–I/O8

I/O9–I/O16

UB

LB

I/O

buffer

Pin arrangement for SOJ and TSOP 2

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

I/O14

I/O13

GND

VCC

I/O12

I/O11

I/O10

I/O9

NC

A14

A13

A12

A11

A10

A4

CE

I/O1

I/O2

I/O3

I/O4

VCC

GND

I/O5

I/O6

I/O7

I/O8

WE

A5

A6

A7

TSOP2

21

22

A8

A9

UB

LB

I/O16

I/O15

2

A1

3

A2

4

A3

1

A0

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

43

42

41

44

A16

A15

OE

A17

44-pin (400 mil) SOJ

Selection guide

–10

–12

–15

–20

Unit

Maximum address access time

10

12

15

20

ns

Maximum output enable access time

5

6

7

8

ns

Maximum operating current

AS7C4098

–

250

220

180

mA

AS7C34098

160

130

110

100

mA

Maximum CMOS standby current

AS7C4098

–

20

mA

AS7C34098

20

mA

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