AT29C040 ATMEL Corporation, AT29C040 Datasheet - Page 9

• Manufacturer Part Number: AT29C040
• Description: 4-Megabit 512K x 8 5-volt Only 256-Byte Sector CMOS Flash Memory
• Manufacturer: ATMEL Corporation

Data Polling Waveforms
Toggle Bit Waveforms
Data Polling Characteristics
Notes: 1. These parameters are characterized and not 100% tested.
Toggle Bit Characteristics
Notes: 1. These parameters are characterized and not 100% tested.
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. See t
2. See t
operate toggle bit. The t
met by the toggling input(s).
OE
OE
spec in AC Read Characteristics.
spec in AC Read Characteristics.
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
OEHP
(1, 2, 3)
specification must be
(2)
(2)
(1)
(1)
Min
150
10
10
0
Min
10
10
0
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address
should not vary.
Typ
Typ
AT29C040A
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
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