29C040 데이터 시트보기 (PDF) - Atmel Corporation
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29C040 Datasheet PDF : 11 Pages
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Data Polling Characteristics (1)
Symbol
Parameter
Min
tDH
Data Hold Time
10
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
AT29C040A
Typ
Max
Units
ns
ns
ns
ns
Toggle Bit Characteristics (1)
Symbol
Parameter
Min
Typ
tDH
Data Hold Time
10
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. The tOEHP specification must be
met by the toggling input(s).
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address
should not vary.
4-173
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