AT29C256-12 查看數據表（PDF） - Atmel Corporation
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AT29C256-12 Datasheet PDF : 12 Pages
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Data Polling Characteristics (1)
Symbol
Parameter
Min
tDH
Data Hold Time
0
tOEH
OE Hold Time
10
tOE
OE to Output Delay (2)
tWR
Write Recovery Time
0
Notes: 1. These parameters are characterized and not 100% tested.
2. See tOE spec in AC Read Characteristics.
Data Polling Waveforms
AT29C256
Typ
Max
Units
ns
ns
ns
ns
Toggle Bit Characteristics (1)
Symbol
Parameter
Min
Typ
tDH
Data Hold Time
0
tOEH
OE Hold Time
10
tOE
OE to Output Delay (2)
tOEHP
OE High Pulse
150
tWR
Write Recovery Time
0
Notes: 1. These parameters are characterized and not 100% tested.
2. See tOE spec in AC Read Characteristics.
Toggle Bit Waveforms (1, 2, 3)
Max
Units
ns
ns
ns
ns
ns
Notes: 1. Toggling either OE or CE or both OE and CE will
operate toggle bit.
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address
should not vary.
4-101
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