AT29C257 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT29C257 Datasheet PDF : 12 Pages
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Program Cycle Characteristics
Symbol
Parameter
Min
tWC
Write Cycle Time
tAS
Address Set-up Time
0
tAH
Address Hold Time
50
tDS
Data Set-up Time
35
tDH
Data Hold Time
0
tWP
Write Pulse Width
90
tBLC
Byte Load Cycle Time
tWPH
Write Pulse Width High
100
Program Cycle Waveforms (1, 2, 3)
AT29C257
Max
Units
10
ms
ns
ns
ns
ns
ns
150
µs
ns
Notes: 1. A6 through A14 must specify the page address
during each high to low transition of WE (or CE).
2. OE must be high when WE and CE are both low.
3. All bytes that are not loaded within the page being
programmed will be indeterminate.
4-111
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