9

0270L–PEEPR–2/09

AT28C64B

17. Page Mode Write Waveforms(1)(2)

Notes:

1. A6 through A12 must specify the same page address during each high to low transition of WE (or CE).

2. OE must be high only when WE and CE are both low.

18. Chip Erase Waveforms

V

16. Page Mode Characteristics

Symbol

Parameter

Min

Max

Units

t

WC

Write Cycle Time

10

ms

t

WC

Write Cycle Time (option available – Ref. AT28HC64BF datasheet)

2

ms

Address Setup Time

0

ns

t

AH

Address Hold Time

50

ns

Data Setup Time

50

ns

Data Hold Time

0

ns

t

WP

Write Pulse Width

100

ns

Byte Load Cycle Time

150

µs

Write Pulse Width High

50

ns

OE

WE

CE

A0 -A12

DATA

VALID ADD

VALID DATA