AT49F002 ATMEL Corporation, AT49F002 Datasheet - Page 10
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AT49F002
Manufacturer Part Number
AT49F002
Description
2-Megabit 256K x 8 5-volt Only Flash Memory
Manufacturer
ATMEL Corporation
Datasheet
1.AT49F002.pdf
(16 pages)
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Data Polling Characteristics
Notes:
DATA Polling Waveforms
Toggle Bit Characteristics
Notes:
Toggle Bit Waveforms
Notes:
10
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.
2. See t
1. These parameters are characterized and not 100% tested.
2. See t
1. Toggling either OE or CE or both OE and CE will operate toggle bit. The t
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
input(s).
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
AT49F002(N)(T)
OE
OE
spec in AC Read Characteristics.
spec in AC Read Characteristics.
I/O6
WE
CE
OE
WE
CE
OE
I/O7
A0-A17
(2)
(2)
t
DH
(1)(2)(3)
(1)
(1)
t
DH
t
OEH
t
OEH
t
t
OE
OE
An
HIGH Z
An
HIGH Z
t
OEHP
Min
Min
150
10
10
10
10
0
0
An
OEHP
Typ
Typ
An
specification must be met by the toggling
An
t
WR
t
WR
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns