Manual

6
AT29C040A
0333I–FLASH–05/02
AC Read Waveforms
(1)(2)(3)(4)
Notes: 1. CE may be delayed up to t
ACC
-t
CE
after the address transition without impact on t
ACC
.
2. OE
may be delayed up to t
CE
-t
OE
after the falling edge of CE without impact on t
CE
or by t
ACC
-t
OE
after an address change
without impact on t
ACC
.
3. t
DF
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
UnitsMin Max Min Max Min Max
Min Max
t
ACC
Address to Output Delay 90 120 150 200 ns
t
CE
(1)
CE to Output Delay 90 120 150 200 ns
t
OE
(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,CEor
Address, whichever occurred first
0000 ns
Note:
Not recommended for New Designs.