AS6VA25616
®
Write cycle (over the operating range)
11
Parameter
Write cycle time
Chip select to write end
Address setup to write end
Address setup time
Write pulse width
Address hold from end of write
Data valid to write end
Data hold time
Write enable to output in high Z
Output active from write end
UB/LB low to end of write
Shaded areas indicate preliminary information.
Symbol
t
WC
t
CW
t
AW
t
AS
t
WP
t
AH
t
DW
t
DH
t
WZ
t
OW
t
BW
Min
55
40
40
0
35
0
25
0
0
5
35
Max
–
–
–
–
–
–
–
–
20
–
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
12
12
4, 5
4, 5
4, 5
Write waveform 1 (WE controlled)
10,11
t
WC
Address
t
CW
CS
t
BW
LB, UB
t
AS
WE
t
DW
D
IN
D
OUT
Data undefined
t
WZ
Data valid
t
OW
High Z
t
DH
t
AW
t
WP
t
AH
Write waveform 2 (CS controlled)
10,11
t
WC
Address
t
AS
CS
t
CW
t
AW
t
BW
LB, UB
t
WP
WE
t
DW
D
IN
D
OUT
t
CLZ
High Z
t
WZ
Data undefined
Data valid
t
OW
High Z
t
DH
t
AH
10/6/00
ALLIANCE SEMICONDUCTOR
5