AT28HC256N 데이터 시트보기 (PDF) - Atmel Corporation
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AT28HC256N Datasheet PDF : 13 Pages
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Data Polling Characteristics(1)
Symbol Parameter
tDH
tOEH
tOE
tWR
Notes:
Data Hold Time
OE Hold Time
OE to Output Delay(2)
Write Recovery Time
1. These parameters are characterized and not 100% tested.
2. See “AC Read Characteristics” on page 6.
Data Polling Waveforms
tOEH
tDH
tOE
Toggle Bit Characteristics(1)
Symbol Parameter
tDH
tOEH
tOE
tOEHP
tWR
Notes:
Data Hold Time
OE Hold Time
OE to Output Delay(2)
OE High Pulse
Write Recovery Time
1. These parameters are characterized and not 100% tested.
2. See “AC Read Characteristics” on page 6.
Toggle Bit Waveforms
Min
Typ
Max
Units
0
ns
0
ns
ns
0
ns
tWR
Min
Typ
Max
Units
10
ns
10
ns
ns
150
ns
0
ns
tOEH
tDH
tOE
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.
10 AT28HC256N
tWR
3446B–PEEPR–4/04
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