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AT28C64B-20 데이터 시트보기 (PDF) - Atmel Corporation
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AT28C64B-20
64K(8K x 8) Parallel EEPROM Page Write and Software Data Protection
Atmel Corporation
AT28C64B-20 Datasheet PDF : 20 Pages
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AT28C64B
Software Protected Write Cycle Waveforms
(1)(2)
OE
CE
t
WPH
t
BLC
t
WP
WE
t
AS
t
AH
t
DH
A0 -A5
A6 - A12
t
DS
DATA
t
WC
Notes: 1. A6 through A12 must specify the same page address during each high to low transition of WE (or CE) after the software
code has been entered.
2. OE must be high only when WE and CE are both low.
11
0270I–PEEPR–08/03
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