14
AT49BV1604A(T)/1614A(T)
1411F–FLASH–03/02
AC Read Waveforms
(1)(2)(3)(4)
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
AT49BV/LV16X4A(T)-70 AT49BV/LV16X4A(T)-90
UnitsMin Max Min Max
t
ACC
Address to Output Delay 70 90 ns
t
CE
(1)
CE to Output Delay 70 90 ns
t
OE
(2)
OE to Output Delay 0 35 0 40 ns
t
DF
(3)(4)
CE or OE to Output Float 0 25 0 25 ns
t
OH
Output Hold from OE,CEor Address, whichever occurred first 0 0 ns
t
RO
RESET to Output Delay 100 100 ns
OUTPUT
VALID
OUTPUT
HIGH Z
RESET
OE
tOE
tCE
ADDRESS VALID
tDF
tOH
tACC
tRO
CE
ADDRESS
