AS7C256 datasheet(4/8 Pages) ALSC

4 / 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

Read Cycle Time

tRC

–

Address Access Time

tAA

–

Chip Enable (CE) Access Time

tACE

–

Output Enable (OE) Access Time

tOE

–3

–4–

5–

6–

Output Hold from Address Change

tOH

2–

3–

3–3

–3

–

CE LOW to Output in Low Z

tCLZ

3–

3–3

–3

–

4, 5

CE HIGH to Output in High Z

tCHZ

–3

–4–

5–

6–

4, 5

OE LOW to Output in Low Z

tOLZ

0–

0–0

–0

–

4, 5

OE HIGH to Output in High Z

tOHZ

–3

–4–

5–

6–

4, 5

Power Up Time

tPU

0–

0–0

–0

–

4, 5

Power Down Time

tPD

–

4, 5

READ CYCLE

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

3, 9

3, 6, 7, 9

TIMING WAVEFORM OF READ CYCLE 1

(Address Controlled)

Address

Dout

Data Valid

tOH

tAA

tRC

3, 6, 8, 9

TIMING WAVEFORM OF READ CYCLE 2

(CE Controlled)

Supply

Current

Dout

tRC

tOE

tOLZ

tACE

tCHZ

tCLZ

tPU

tPD

ICC

ISB

50%

tOHZ

Data Valid

AS7C256-04

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