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Número de pieza
componentes Descripción
AT28C64B-25TC Ver la hoja de datos (PDF) - Atmel Corporation
Número de pieza
componentes Descripción
Fabricante
AT28C64B-25TC
64K(8K x 8) Parallel EEPROM Page Write and Software Data Protection
Atmel Corporation
AT28C64B-25TC Datasheet PDF : 20 Pages
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Page Mode Characteristics
Symbol
t
WC
t
WC
t
AS
t
AH
t
DS
t
DH
t
WP
t
BLC
t
WPH
Parameter
Write Cycle Time
Write Cycle Time (option available; contact Atmel sales office for
ordering part number)
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
Min
Max
Units
10
ms
2
ms
0
ns
50
ns
50
ns
0
ns
100
ns
150
µs
50
ns
Page Mode Write Waveforms
(1)(2)
OE
CE
WE
A0 -A12
DATA
t
AS
t
AH
VALID ADD
VALID DATA
t
WP
t
DH
t
DS
t
WPH
t
BLC
t
WC
Notes: 1. A6 through A12 must specify the same 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.
8
AT28C64B
0270I–PEEPR–08/03
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