AS7C256
AS7C256L
11
WRITE CYCLE
(V = 5V±10%, GND = 0V, T = 0°C to +70°C)
CC a
-10
-12
-15
-20
-25
-35
Parameter
Symbol Min Max Min Max Min Max Min Max Min Max Min Max Unit Notes
Write Cycle Time
t
t
t
t
t
t
t
t
t
t
10
9
–
–
–
–
–
–
–
–
5
–
12
10
10
0
–
–
–
–
–
–
–
–
5
–
15
12
12
0
–
–
–
–
–
–
–
–
5
–
20
12
12
0
–
–
–
–
–
–
–
–
5
–
20
15
15
0
–
–
–
–
–
–
–
–
5
–
30
20
20
0
–
–
–
–
–
–
–
–
5
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
WC
CW
AW
AS
Chip Enable to Write End
Address Setup to Write End
Address Setup Time
9
0
Write Pulse Width
7
8
9
12
0
15
0
17
0
WP
AH
DW
DH
WZ
OW
Address Hold From End of Write
Data Valid to Write End
Data Hold Time
0
0
0
6
6
8
10
0
10
0
15
0
0
0
0
4, 5
4, 5
4, 5
Write Enable to Output in High Z
Output Active from Write End
–
–
–
–
–
–
3
3
3
3
3
3
10, 11
TIMING WAVEFORM OF WRITE CYCLE 1
(WE Controlled)
t
WC
t
t
t
AW
AH
Address
WE
t
WP
t
AS
t
DW
DH
D
Data Valid
in
t
t
WZ
OW
D
out
AS7C256-05
10, 11
t
TIMING WAVEFORM OF WRITE CYCLE 2
(CE Controlled)
WC
t
t
AH
AW
Address
CE
t
t
CW
AS
t
WP
WE
t
t
t
DH
WZ
DW
D
Data Valid
in
D
out
AS7C256-06
5
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
