AT28C256F-35UM/883 ATMEL [ATMEL Corporation], AT28C256F-35UM/883 Datasheet - Page 6
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AT28C256F-35UM/883
Manufacturer Part Number
AT28C256F-35UM/883
Description
256K (32K x 8) Paged Parallel EEPROM
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT28C256F-35UM883.pdf
(27 pages)
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9. AC Read Characteristics
10. AC Read Waveforms
Notes:
6
Symbol
t
t
t
t
t
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.
AT28C256
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 (C
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
AT28C256-15
Min
0
0
0
Max
150
150
70
50
L
= 5 pF).
AT28C256-20
Min
0
0
0
Max
200
200
55
80
AT28C256-25
Min
0
0
0
CE
ACC
or by t
.
Max
250
250
100
60
ACC
- t
OE
AT28C256-35
Min
0
0
0
after an address change
Max
350
350
100
0006K–PEEPR–01/08
70
Units
ns
ns
ns
ns
ns
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