AS6UB51216
&
ꢂꢃꢄꢃꢇꢃꢆ ꢁ
Read waveform 2 (CS, OE, UB, LB controlled)
t
RC
Address
t
AA
OE
CS
t
OE
t
t
OH
OLZ
t
OHZ
t
ACS
t
t
HZ
LZ
LB, UB
t
t
BA
BHZ
t
BLZ
D
Data valid
OUT
ꢈꢈ
Write cycle (over the operating range)
–55
–70
Parameter
Symbol
Min
55
45
45
0
Max
–
Min
70
60
60
0
Max
–
Unit
Notes
12
Write cycle time
tWC
tCW
tAW
tAS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Chip enable to write end
Address setup to write end
Address setup time
–
–
–
–
–
–
12
Write pulse width
tWP
tAH
tDW
tDH
tWZ
tOW
tBW
40
0
–
50
0
–
Address hold from end of write
Data valid to write end
Data hold time
–
–
25
0
–
30
0
–
–
–
4, 5
4, 5
4, 5
Write enable to output in high Z
Output active from write end
UB/LB low to end of write
0
20
–
0
25
–
5
5
45
–
60
–
ꢈꢉꢃꢈꢈ
Write waveform 1 (WE controlled)
t
t
WC
Address
t
AH
CW
CS
t
BW
LB, UB
t
AW
t
t
WP
AS
WE
t
t
DH
DW
Data valid
D
IN
t
WZ
t
OW
D
Data undefined
OUT
High Z
10/30/01; V.0.9.2
Alliance Semiconductor
P. 5 of 11
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
