AS7C1026A datasheet(4/9 Pages) ALSC

4 / 9 page

AS7C1026A

AS7C31026A

2/6/01; V.0.9

Alliance Semiconductor

P. 4 of 9

Read cycle (over the operating range)3,9

Key to switching waveforms

Read waveform 1 (address controlled)3,6,7,9

Read waveform 2 (OE, CE, UB, LB controlled)3,6,8,9

Parameter

Symbol

-10

-12

-15

-20

Unit

Notes

MinMax

Min

Max

MinMax

Read cycle time

tRC

–

Address access time

tAA

–10

–

–15–

Chip enable (CE) access time

tACE

–10

–

–15–

Output enable (OE) access time

tOE

–

–3

–4

–

Output hold from address change

tOH

2–

3–3–

3–

CE Low to output in low Z

tCLZ

0–

0–0–

0–

4, 5

CE High to output in high Z

tCHZ

–

–3

–4

–

4, 5

OE Low to output in low Z

tOLZ

0–

0–0–

0–

4, 5

Byte select access time

tBA

–

–3

–4

–

Byte select Low to low Z

tBLZ

0–

0–0–

0–

4, 5

Byte select High to high Z

tBHZ

–

–6

–

4, 5

OE High to output in high Z

tOHZ

–

–3

–4

–

4, 5

Power up time

tPU

0–

0–0–

0–

4, 5

Power down time

tPD

–10

–

–15–

4, 5

Undefined output/don’t care

Falling input

Rising input

tOH

tAA

tRC

tOH

DataOUT

Address

Data valid

Previous data valid

Data valid

tRC

tAA

tBLZ

tBA

tOE

tOLZ

tOH

tOHZ

tHZ

tBHZ

tACE

tLZ

Address

LB, UB

DataIN

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