Manual

9
AT29C040A
0333I–FLASH–05/02
Program Cycle Waveforms
(1)(2)(3)
Notes: 1. A8 through A18 must specify the sector address during each high to low transition of WE (or CE).
2. OE
must be high only when WE and CE are both low.
3. All bytes that are not loaded within the sector being programmed will be indeterminate.
Program Cycle Characteristics
Symbol Parameter Min Max Units
t
WC
WriteCycleTime 10 ms
t
AS
Address Setup Time 10 ns
t
AH
Address Hold Time 50 ns
t
DS
Data Setup Time 50 ns
t
DH
Data Hold Time 10 ns
t
WP
Write Pulse Width 90 ns
t
BLC
Byte Load Cycle Time 150 µs
t
WPH
Write Pulse Width High 100 ns