AT49F040A(2003) 查看數據表（PDF） - Atmel Corporation
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AT49F040A Datasheet PDF : 17 Pages
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AT49F040A
AC Read Characteristics
Symbol
tACC
tCE(1)
tOE(2)
tDF(3)(4)
tOH
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE or Address, whichever
occurred first
AT49F040A-55
Min
Max
55
55
0
30
0
25
0
AT49F040A-70
Min
Max
70
70
0
35
0
25
0
Units
ns
ns
ns
ns
ns
AC Read Waveforms (1)(2)(3)(4)
ADDRESS
ADDRESS VALID
CE
tCE
OE
tOE
t DF
tACC
tOH
OUTPUT
HIGH Z
OUTPUT
VALID
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 tCE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change
without impact on tACC.
3. tDF is specified from OE or CE whichever occurs first (CL = 5 pF).
4. This parameter is characterized and is not 100% tested.
7
3359A–FLASH–6/03
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