at29c040a ATMEL Corporation, at29c040a Datasheet - Page 7

• Manufacturer Part Number: at29c040a
• Description: At29c040a 4-megabit 512k X 8 5-volt Only 256-byte Sector Flash Memory
• Manufacturer: ATMEL Corporation

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