AT28LV256 Ver la hoja de datos (PDF) - Atmel Corporation
Número de pieza
componentes Descripción
Fabricante
AT28LV256 Datasheet PDF : 10 Pages
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AT28LV256
Page Mode Characteristics
Symbol
Parameter
tWC
Write Cycle Time
tAS
Address Set-up Time
tAH
Address Hold Time
tDS
Data Set-up Time
tDH
Data Hold Time
tWP
Write Pulse Width
tBLC
Byte Load Cycle Time
tWPH
Write Pulse Width High
Programming Algorithm
Min
Max
Units
10
ms
0
ns
50
ns
50
ns
0
ns
200
ns
150
µs
100
ns
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA A0
TO
ADDRESS 5555
LOAD DATA XX
TO
ANY ADDRESS (3)
WRITES ENABLED (2)
Notes:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. Data protect state will be re-activated at the end of program
cycle.
3. 1 to 64-bytes of data are loaded.
LOAD LAST BYTE
TO
LAST ADDRESS (3)
ENTER DATA
PROTECT STATE
Software Protected Write Cycle Waveforms (1, 2, 3)
Notes: 1. A0 - A14 must conform to the addressing sequence for 2. A6 through A14 must specify the same page address during
the first three bytes as shown above.
each high to low transition of WE (or CE) after the software
code has been entered.
3. OE must be high only when WE and CE are both low.
2-151
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