AS6WA5128
®
Read cycle (over the operating range)
Parameter
Read cycle time
Address access time
Chip select (CS) access time
Output enable (OE) access time
Output hold from address change
CS low to output in low Z
CS high to output in high Z
OE low to output in low Z
OE high to output in high Z
Power up time
Power down time
Symbol
t
RC
t
AA
t
ACS
t
OE
t
OH
t
CLZ
t
CHZ
t
OLZ
t
OHZ
t
PU
t
PD
Min
55
–
–
–
10
10
0
5
0
0
–
Max
–
55
55
25
–
–
20
–
20
–
55
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
4, 5
4, 5
4, 5
4, 5
4, 5
4, 5
3
3
Notes
Key to switching waveforms
Rising input
Falling input
Undefined/don’t care
Read waveform 1 (address controlled)
t
RC
Address
t
OH
D
OUT
Previous data valid
t
AA
Data valid
t
OH
Read waveform 2 (CS, OE controlled)
t
RC1
CS
t
OE
OE
t
OLZ
t
ACE
D
OUT
t
CLZ
Supply
current
t
PU
50%
Data valid
t
PD
50%
I
CC
I
SB
t
OHZ
t
CHZ
9/21/01; v.1.2
Alliance Semiconductor
P. 4 of 9