Ac characteristics for read operation, Ac waveforms for read operation(1), Ac waveforms for read operation – Rainbow Electronics AT27BV020 User Manual
Page 5
AT27BV020
5
Note:
2,3,4,5. – See “AC Waveforms for Read Operation”.
AC Waveforms for Read Operation
(1)
Notes:
1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE may be delayed up to t
CE
- t
OE
after the falling edge of CE without impact on t
CE
.
3. OE may be delayed up to t
ACC
- t
OE
after the address is valid without impact on t
ACC
.
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
AC Characteristics for Read Operation
V
CC
= 2.7V to 3.6V and 4.5V to 5.5V
Symbol
Parameter
Condition
AT27BV020
Units
-90
-12
-15
Min
Max
Min
Max
Min
Max
t
ACC
(3)
Address to Output Delay
CE = OE = V
IL
90
120
150
ns
t
CE
(2)
CE to Output Delay
OE = V
IL
90
120
150
ns
t
OE
(2)(3)
OE to Output Delay
CE = V
IL
50
50
60
ns
t
DF
(4)(5)
OE or CE High to Output Float,
whichever occurred first
40
40
50
ns
t
OH
Output Hold from Address, CE or OE,
whichever occurred first
0
0
0
ns