9

0006K–PEEPR–01/08

AT28C256

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

Notes:

1. A6 through A14 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

16. Page Mode Characteristics

Symbol

Parameter

Min

Max

Units

t

WC

Write Cycle Time (option available)

AT28C256

10

ms

AT28C256F

3

ms

t

AS

Address Setup Time

0

ns

Address Hold Time

50

ns

Data Setup Time

50

ns

t

DH

Data Hold Time

0

ns

Write Pulse Width

100

ns

Byte Load Cycle Time

150

µs

t

WPH

Write Pulse Width High

50

ns

V