AS7C34098-12TCN datasheet(5/10 Pages) ALSC

Part #	AS7C34098-12TCN

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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5 / 10 page

®

AS7C4098

AS7C34098

1/13/05; v.1.9

Alliance Semiconductor

P. 5 of 10

Read waveform 2 (CE, OE, UB, LB controlled)6,8,9

Write cycle (over the operating range)11

Parameter

Symbol

–10

–12

–15

–20

Unit Note

Min

Max

Min

Max

Min

Max

Min

Max

Write cycle time

tWC

10–12–15

–

20

–

ns

Chip enable (CE) to write end

tCW

7–8

–

10

–

12

–

ns

Address setup to write end

tAW

7–8

–

10

–

12

–

ns

Address setup time

tAS

0

–

0

–

0–0–

ns

Write pulse width (OE = High)

tWP1

7–8

–

10

–

12

–

ns

Write pulse width (OE = Low)

tWP2

10–12–15

–

20

–

ns

Write recovery time

tWR

0

–

0

–

0–0–

ns

Address hold from end of write

tAH

0

–

0

–

0–0–

ns

Data valid to write end

tDW

5

–

6

7–9–

ns

Data hold time

tDH

0

–

0

–

0–0–

ns

4, 5

Write enable to output in High-Z

tWZ

0

5

0

6

0709

ns

4, 5

Output active from write end

tOW

3

–

3

–

3–3–

ns

4, 5

Byte enable Low to write end

tBW

7–8

–

10

–

12

–

ns

4, 5

Data valid

tRC

tAA

tBLZ

tBA

tOE

tOLZ

tOH

tOHZ

tCHZ

tBHZ

tACE

tLZ

Address

OE

CE

LB, UB

DataOUT

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