ย
Write cycle (over the operating range)
โ55
Parameter
Symbol Min Max
Write cycle time
tWC
55
โ
Chip select to write end
tCW
40
โ
Address setup to write end
tAW
40
โ
Address setup time
tAS
0
โ
Write pulse width
tWP
35
โ
Write recovery time
tWR
0
โ
Address hold from end of write tAH
0
โ
Data valid to write end
tDW
25
โ
Data hold time
tDH
0
โ
Write enable to output in high Z tWZ
0
20
Output active from write end
tOW
5
โ
โ70
Min Max Unit
70
โ
ns
60
โ
ns
60
โ
ns
0
โ
ns
55
โ
ns
0
โ
ns
0
โ
ns
30
โ
ns
0
โ
ns
0
20
ns
5
โ
ns
Write waveform 1 (WE controlled)
tWC
tAW
Address
WE
DIN
DOUT
tWP
tAS
tWZ
tWR
tAH
tDW
Data valid
tDH
tOW
Write waveform 2 (CS controlled)
tWC
tAW
Address
CS
WE
DIN
DOUT
tAS
tCW
tWP
tWZ
tDW
Data valid
tAH
tWR
tDH
AS6UA5128
Notes
12
12
4, 5
4, 5
4, 5
9/21/01; v.1.2
Alliance Semiconductor
P. 5 of 9