AT27C800 データシートの表示（PDF） - Atmel Corporation

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AT27C800

8-Megabit (512K x 16 or 1024K x 8) UV Erasable EPROM

Atmel Corporation 

Byte-Wide Read Mode AC Waveforms(1)

AT27C800

Note: 1. BYTE/VPP = VIL

Byte-Wide Read Mode AC Waveforms(1)

Note: 1. BYTE/VPP = VIH

BYTE Transition AC Waveforms

A0 - A18

VALID

A-1

BYTE/VPP

O0 - O7

O8 - O15

tOH

tSTD

VALID

tACC

tOH

tST

DATA OUT

HI-Z

DATA OUT

DATA OUT

Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.

2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.

3. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC.

4. This parameter is only sampled and is not 100% tested.

5. Output float is defined as the point when data is no longer driven.

5

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