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AT49F2048A Datasheet(PDF) 9 Page - ATMEL Corporation

Part No. AT49F2048A
Description  2-megabit 256K x 8/ 128K x 16 5-volt Only CMOS Flash Memory
Download  13 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT49F2048A Datasheet(HTML) 9 Page - ATMEL Corporation

 
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9
AT49F2048A
1159F–04/01
Notes:
1. These parameters are characterized and not 100% tested.
2. See t
OE spec in “AC Read Characteristics” on page 6.
Data Polling Waveforms
Notes:
1. These parameters are characterized and not 100% tested.
2. See t
OE spec in “AC Read Characteristics” on page 6.
Toggle Bit Waveforms
(1)(2)(3)
Notes:
1.
Toggling either OE or CE or both OE and CE will operate toggle bit. The tOEHP specification must be met by the toggling
input(s).
2.
Beginning and ending state of I/O6 will vary.
3.
Any address location may be used but the address should not vary.
Data Polling Characteristics
(1)
Symbol
Parameter
Min
Typ
Max
Units
t
DH
Data Hold Time
10
ns
t
OEH
OE Hold Time
10
ns
tOE
OE to Output Delay
(2)
ns
t
WR
Write Recovery Time
0
ns
Toggle Bit Characteristics(1)
Symbol
Parameter
Min
Typ
Max
Units
t
DH
Data Hold Time
10
ns
t
OEH
OE Hold Time
10
ns
t
OE
OE to Output Delay
(2)
ns
t
OEHP
OE High Pulse
150
ns
t
WR
Write Recovery Time
0
ns
CE
OE
I/O7
tOE
WE
tDH
An
tOEH
tWR
A0-A16
An
An
An
An
HIGH Z
CE
OE
I/O6
tOE
WE
tDH
tOEHP
HIGH Z
tOEH
tWR


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