AT28HC256N 查看數據表（PDF） - Atmel Corporation
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AT28HC256N Datasheet PDF : 13 Pages
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AC Write Characteristics
Symbol
Parameter
tAS, tOES
Address, OE Setup Time
tAH
Address Hold Time
tCS
Chip Select Setup Time
tCH
Chip Select Hold Time
tWP
Write Pulse Width (WE or CE)
tDS
Data Setup Time
tDH, tOEH
Data, OE Hold Time
tDV
Time to Data Valid
Notes: 1. NR = No Restriction.
AC Write Waveforms
WE Controlled
tOES
tAS
tCS
Min
0
50
0
0
100
50
0
NR(1)
tOEH
tAH
tCH
tWP
tDS
tWPH
tDH
CE Controlled
tOES
tAS
tCS
tOEH
tAH
tCH
tWP
tDV
tDS
tWPH
tDH
AT28HC256N
Max
Units
ns
ns
ns
ns
ns
ns
ns
7
3446B–PEEPR–4/04
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