AT28BV64B-25JC ATMEL Corporation, AT28BV64B-25JC Datasheet - Page 7

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AT28BV64B-25JC

Manufacturer Part Number
AT28BV64B-25JC
Description
64K (8K x 8) Battery-Voltage Parallel EEPROM with Page Write and Software Data Protection
Manufacturer
ATMEL Corporation
Datasheet
Page Mode Characteristics
Write Algorithm
Notes for software program code:
1. Data Format: I/O7 - I/O0 (Hex); Address Format: A12 - A0 (Hex).
2. Data protect state will be re-activated at the end of the write cycle.
3. 1 to 64 bytes of data are loaded.
Symbol
t
t
t
t
t
t
t
t
WC
AS
AH
DS
DH
WP
BLC
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
(1)
LOAD LAST BYTE
ANY ADDRESS
ADDRESS 0AAA
LAST ADDRESS
ADDRESS 1555
ADDRESS 1555
LOAD DATA AA
LOAD DATA XX
LOAD DATA 55
LOAD DATA A0
TO
TO
TO
TO
TO
(3)
WRITES ENABLED
ENTER DATA
PROTECT STATE
(2)
Min
100
100
200
100
0
0
AT28BV64B
Max
100
10
Units
ms
ns
ns
ns
ns
ns
µs
ns
7

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