AT29C256
Data Polling Characteristics(1)
Symbol
Parameter
Min
0
Typ
Max
Units
ns
tDH
Data Hold Time
tOEH
tOE
OE Hold Time
10
ns
OE to Output Delay(2)
Write Recovery Time
ns
tWR
0
ns
Notes: 1. These parameters are characterized and not 100% tested.
2. See tOE spec in AC Read Characteristics.
Data Polling Waveforms
Toggle Bit Characteristics(1)
Symbol
Parameter
Min
0
Typ
Max
Units
ns
tDH
Data Hold Time
tOEH
tOE
tOEHP
tWR
OE Hold Time
10
ns
OE to Output Delay(2)
OE High Pulse
ns
150
0
ns
Write Recovery Time
ns
Notes: 1. These parameters are characterized and not 100% tested.
2. See tOE spec in AC Read Characteristics.
Toggle Bit Waveforms(1)(2)(3)
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.
11
0046P–FLASH–10/04
ATMEL [ ATMEL ]
