27C800 参数 Datasheet PDF下载

AT27C800

Byte-Wide Read Mode AC Waveforms

(1)

Note:

1.

BYTE/V

PP

= V

IL

Byte-Wide Read Mode AC Waveforms

(1)

Note:

1.

BYTE/V

PP

= V

IH

BYTE Transition AC Waveforms

A0 - A18

VALID

VALID

A-1

BYTE/V

PP

t

ACC

t

OH

t

ST

O

0

- O

7

DATA OUT

DATA OUT

t

OH

O

8

- O

15

HI-Z

DATA OUT

t

STD

Notes:

1.

2.

3.

4.

5.

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

OE may be delayed up to t

CE

- t

OE

after the falling edge of CE without impact on t

CE.

OE may be delayed up to t

ACC

- t

OE

after the address is valid without impact on t

ACC

.

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

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

5