AS7C256A ETC, AS7C256A Datasheet - Page 5

• Manufacturer Part Number: AS7C256A
• Description: 5V/3.3V 32K X 8 CMOS SRAM (Common I/O)
• Manufacturer: ETC

Write cycle (over the operating range)
Shaded areas contain advance information.
Write waveform 1 (WE controlled)
Write waveform 2 (CE controlled)
Parameter
Write cycle time
Chip enable 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
Address
3/7/01; V.0.9.2
Address
D
W E
C E
D
D
W E
out
D
in
out
in
t
AS
t
AS
Symbol
t
t
t
t
t
t
t
t
t
t
WC
CW
AW
AS
WP
AH
DW
DH
WZ
OW
10,11
10,11
t
t
WZ
WZ
11
Alliance Semiconductor
t
AW
Min
10
t
8
8
0
7
0
5
0
1
-
AW
t
CW
-10
t
t
t
WP
WC
WC
Max
t
WP
--
6
-
-
-
-
-
-
-
-
t
DW
Data valid
Min
12
10
9
0
8
0
6
0
–
1
t
DW
Data valid
-12
®
Max
–
–
–
–
–
–
–
–
6
–
t
AH
t
DH
t
Min
OW
15
12
10
0
9
0
8
0
–
1
-15
t
t
AH
DH
Max
–
–
–
–
–
–
–
–
6
–
Min
20
12
12
12
10
0
0
0
–
2
-20
Max
–
–
–
–
–
–
–
–
6
–
Unit
AS7C3256A
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AS7C256A
P. 5 of 8
Notes
4, 5
4, 5
4, 5