Rainbow Electronics AT49F1025 - Manual (Page 6)

6
AT49F1024/1025
0765I–05/01
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 (C
L
= 5 pF).
4. This parameter is characterized and is not 100% tested.
AC Read Characteristics
Symbol Parameter
AT49F1024-35
AT49F1025-35 AT49F1024-45
AT49F1025-45
AT49F1024-50
AT49F1024-55
AT49F1025-55 AT49F1024-70
AT49F1025-70
Units Min Max Min Max Min Max Min Max Min Max
t
ACC
Address to Output Delay 35 45 50 55 70 ns
t
CE
(1) CE to Output Delay 35 45 50 55 70 ns
t
OE
(2) OE to Output Delay 0 25 0 30 30 30 35 ns
t
DF
(3)(4) CE or OE to Output Float 0 25 0 25 25 0 25 0 25 ns
t
OH
Output Hold from OE,
CE or Address,
whichever occurred first
0 0 0 0 0 ns