AS7C256 datasheet(5/8 Pages) ALSC

5 / 8 page

AS7C256

AS7C256L

Parameter

Symbol

-10

-12

-15

-20

-25

-35

Unit

Notes

Min Max Min Max Min Max Min Max Min Max Min Max

Write Cycle Time

tWC

–

12–

–20

–

–30

–

Chip Enable to Write End

tCW

–

–12–

–

Address Setup to Write End

tAW

–

–12–

–

Address Setup Time

tAS

–

–0–

0–

Write Pulse Width

tWP

7–

8–

–

Address Hold From End of Write

tAH

–

–0–

0–

Data Valid to Write End

tDW

6–

–

Data Hold Time

tDH

–

–0–

0–

4, 5

Write Enable to Output in High Z

tWZ

–

5–5

–5

4, 5

Output Active from Write End

tOW

–

–3–

3–

4, 5

WRITE CYCLE

(VCC = 5V±10%, GND = 0V, Ta = 0°C to +70°C)

10, 11

TIMING WAVEFORM OF WRITE CYCLE 1

(WE Controlled)

tAW

tAH

tWC

Address

Din

Dout

tDH

tOW

tDW

tWZ

tWP

tAS

Data Valid

AS7C256-05

10, 11

TIMING WAVEFORM OF WRITE CYCLE 2

(CE Controlled)

tAW

Address

Din

Dout

Data Valid

tCW

tWP

tDW

tDH

tAH

tWZ

tWC

tAS

AS7C256-06

AS7C256 Datasheet(PDF) 5 Page - Alliance Semiconductor Corporation

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