AT28HC64B ATMEL Corporation, AT28HC64B Datasheet - Page 9

• Manufacturer Part Number: AT28HC64B
• Description: 64K 8K x 8 High Speed CMOS E2PROM with Page Write and Software Data Protection
• Manufacturer: ATMEL Corporation

Toggle Bit Waveforms
Toggle Bit Characteristics
Notes: 1. These parameters are characterized and not 100% tested.
Data Polling Characteristics
Notes: 1. These parameters are characterized and not 100% tested.
Data Polling Waveforms
Notes: 1. Toggling either OE or CE or both OE and CE will
Symbol
t
t
t
t
Symbol
t
t
t
t
t
DH
OEH
OE
WR
DH
OEH
OE
OEHP
WR
2. Beginning and ending state of I/O6 will vary.
operate toggle bit.
Parameter
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
(1, 2, 3)
(2)
(2)
(1)
(1)
Min
150
10
10
0
Min
0
0
0
2. See AC Read Characteristics.
3. Any address location may be used, but the
2. See AC Read Characteristics.
address should not vary.
Typ
Typ
AT28HC64B
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
2-275