AT28C64B

7

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.

Chip Erase Waveforms

t

S = tH = 1 µsec (min.)

tW = 10 msec (min.)

V

H = 12.0 ± 0.5V

Page Mode Characteristics

Symbol

Parameter

Min

Max

Units

t

WC

Write Cycle Time

10

ms

tWC

Write Cycle Time (option available; contact Atmel sales office for

ordering part number)

02

ms

t

AS

Address Setup Time

0

ns

t

AH

Address Hold Time

50

ns

tDS

Data Setup Time

50

ns

t

DH

Data Hold Time

0

ns

t

WP

Write Pulse Width

100

ns

tBLC

Byte Load Cycle Time

150

µs

t

WPH

Write Pulse Width High

50

ns