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AT28C040-20BI 데이터 시트보기 (PDF) - Atmel Corporation
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AT28C040-20BI
4-Megabit (512K x 8) Paged E2PROM
Atmel Corporation
AT28C040-20BI Datasheet PDF : 12 Pages
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Page Mode Characteristics
Symbol
t
WC
t
AS
t
AH
t
DS
t
DH
t
WP
t
BLC
t
WPH
Parameter
Write Cycle Time
Address Set-up Time
Address Hold Time
Data Set-up Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
Page Mode Write Waveforms
(1)(2)
AT28C040
Min
Max
Units
10
ms
0
ns
50
ns
50
ns
0
ns
100
ns
150
µ
s
50
ns
Notes: 1. A8 through A18 must specify the 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.
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