AS7C256A-12TI datasheet(5/9 Pages) ALSC

Part #	AS7C256A-12TI

Description	5V 32K X 8 CMOS SRAM (Common I/O)

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Manufacturer	ALSC [Alliance Semiconductor Corporation]

Direct Link	https://www.alliancememory.com

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5 / 9 page

AS7C256A

9/24/04; v.1.2

Alliance Semiconductor

P. 5 of 9

®

Write cycle (over the operating range)9

Write waveform 1 (WE controlled)9

Write waveform 2 (CE controlled)9

Parameter

Symbol

-10

-12

-15

-20

Unit Notes

Min

Max

Min

Max

Min

Max

Min

Max

Write cycle time

tWC

10–12–15–20–

ns

Chip enable to write end

tCW

8

–

8

–

10–12–

ns

Address setup to write end

tAW

8

–

8

–

10–12–

ns

Address setup time

tAS

0–

ns

Write pulse width

tWP

7–

8–

9–

12

–

ns

Write recovery time

tWR

0–

ns

Address hold from end of write

tAH

0–

ns

Data valid to write end

tDW

5–

6–

8–

10

–

ns

Data hold time

tDH

0–

ns

3,4

Write enable to output in high Z

tWZ

–5

–6

–7

–8

ns

3,4

Output active from write end

tOW

3–

ns

3,4

tAW

tAH

tWC

Address

WE

Din

Dout

tDH

tOW

tDW

tWZ

tWP

tAS

Data valid

tWR

tAW

Address

CE

WE

Din

Data valid

tCW

tDW

tDH

tAH

tWC

tAS

tWR

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AS7C256A-12TI Datasheet(PDF) 5 Page - Alliance Semiconductor Corporation

AS7C256A-12TI Datasheet(HTML) 5 Page - Alliance Semiconductor Corporation

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