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AT29C040A-12JI Datasheet(PDF) 9 Page - ATMEL Corporation

Part No. AT29C040A-12JI
Description  4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
Download  17 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT29C040A-12JI Datasheet(HTML) 9 Page - ATMEL Corporation

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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
tWC
WriteCycleTime
10
ms
tAS
Address Setup Time
10
ns
tAH
Address Hold Time
50
ns
tDS
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
tWPH
Write Pulse Width High
100
ns


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