AT28HC64BF ATMEL [ATMEL Corporation], AT28HC64BF Datasheet - Page 11

• Manufacturer Part Number: AT28HC64BF
• Description: 64K (8K x 8) High Speed Parallel EEPROM with Page Write and Software Data Protection
• Manufacturer: ATMEL [ATMEL Corporation]

22. Data Polling Characteristics
Note:
23. Data Polling Waveforms
24. Toggle Bit Characteristics
Notes:
25. Toggle Bit Waveforms
Notes:
3648A–PEEPR–10/06
Symbol
t
t
t
t
Symbol
t
t
t
t
t
DH
OEH
OE
WR
DH
OEH
OE
OEHP
WR
1. These parameters are characterized and not 100% tested.
1. These parameters are characterized and not 100% tested.
2.
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.
See “AC Read Characteristics” on page 6.
Data Hold Time
OE Hold Time
OE to Output Delay
Write Recovery Time
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
OE High Pulse
Write Recovery Time
Parameter
(2)
t
DH
(1)
(2)
t
OEH
t
(1)(2)(3)
DH
t
OEH
t
(1)
OE
t
OE
(1)
See “AC Read Characteristics” on page 6.
Min
Min
150
10
10
0
0
0
0
Typ
t
Typ
WR
AT28HC64BF
t
WR
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
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