AS7C3256A
®
Write cycle (over the operating range)11
-10
-12
-15
-20
Parameter
Write cycle time
Symbol Min Max Min Max Min Max Min Max Unit Notes
t
t
t
10
8
8
0
7
0
0
5
0
–
3
–
–
–
–
–
–
–
–
–
5
–
12
8
8
0
8
0
0
6
0
–
3
–
–
–
–
–
–
–
–
–
6
–
15
10
10
0
–
–
–
–
–
–
–
–
–
7
–
20
12
12
0
–
–
–
–
–
–
–
–
–
8
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
WC
CW
AW
Chip enable to write end
Address setup to write end
Address setup time
t
AS
WP
WR
Write pulse width
t
9
12
0
Write recovery time
t
0
Address hold from end of write
Data valid to write end
Data hold time
t
0
0
AH
t
8
10
0
DW
t
0
4, 5
4, 5
4, 5
DH
WZ
OW
Write enable to output in high Z
Output active from write end
t
–
–
t
3
3
Write waveform 1 (WE controlled)10,11
t
WC
t
t
AH
AW
Address
WE
t
t
WR
WP
t
AS
t
t
DH
DW
D
Data valid
in
t
t
WZ
OW
D
out
Write waveform 2 (CE controlled)10,11
t
WC
t
t
AH
AW
Address
CE
t
t
t
CW
WR
AS
t
WP
WE
t
t
t
WZ
DW
DH
D
Data valid
in
D
out
4/23/04; v.2.0
Alliance Semiconductor
P. 5 of 9