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AT29C040A-12JI Datasheet(PDF) 6 Page - ATMEL Corporation

Part No. AT29C040A-12JI
Description  4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
Download  17 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT29C040A-12JI Datasheet(HTML) 6 Page - ATMEL Corporation

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6
AT29C040A
0333I–FLASH–05/02
AC Read Waveforms(1)(2)(3)(4)
Notes:
1. CE may be delayed up to tACC -tCE after the address transition without impact on tACC.
2. OE may be delayed up to t
CE -tOE after the falling edge of CE without impact on tCE or by tACC -tOE after an address change
without impact on t
ACC.
3. tDF is specified from OE or CE whichever occurs first (CL = 5 pF).
4. This parameter is characterized and is not 100% tested.
AC Read Characteristics
Symbol
Parameter
AT29C040A-90
AT29C040A-12
AT29C040A-15
AT29C040A-20
Units
Min
Max
Min
Max
Min
Max
Min
Max
tACC
Address to Output Delay
90
120
150
200
ns
tCE
(1)
CE to Output Delay
90
120
150
200
ns
tOE
(2)
OE to Output Delay
0
40
0
50
0
70
0
80
ns
t
DF
(3)(4)
CE or OE to Output Float
0
25
0
30
0
40
0
50
ns
t
OH
Output Hold from OE,CE or
Address, whichever occurred first
00
0
0
ns
Note:
Not recommended for New Designs.


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