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AT29C256-12JC Datasheet(PDF) 6 Page - ATMEL Corporation

Part No. AT29C256-12JC
Description  256K 32K x 8 5-volt Only CMOS Flash Memory
Download  12 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT29C256-12JC Datasheet(HTML) 6 Page - ATMEL Corporation

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AT29C256
0046P–FLASH–10/04
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
AT29C256-70
AT29C256-90
AT29C256-12
AT29C256-15
Units
Min
Max
Min
Max
Min
Max
Min
Max
t
ACC
Address to Output Delay
70
90
120
150
ns
tCE
(1)
CE to Output Delay
70
90
120
150
ns
t
OE
(2)
OE to Output Delay
0
40
0
40
0
50
0
70
ns
t
DF
(3)(4)
CE or OE to Output Float
025025030
0
40
ns
t
OH
Output Hold from OE, CE or Address,
whichever occurred first
000
0
ns
Note:
Not recommended for New Designs.


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