AS7C256A-20JCN Alliance Memory, AS7C256A-20JCN Datasheet - Page 5
![no-image](/images/no-image-200.jpg)
AS7C256A-20JCN
Manufacturer Part Number
AS7C256A-20JCN
Description
SRAM 256K, 5V, 20ns, FAST 32K x 8 Asynch SRAM
Manufacturer
Alliance Memory
Type
SRAMr
Datasheet
1.AS7C256A-12JCN.pdf
(9 pages)
Specifications of AS7C256A-20JCN
Rohs
yes
Memory Size
256 kbit
Organization
32 k x 8
Access Time
20 ns
Supply Voltage - Max
5.5 V
Supply Voltage - Min
4.5 V
Maximum Operating Current
75 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Package / Case
SOJ-28
Interface
TTL
Memory Type
CMOS
Factory Pack Quantity
25
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AS7C256A-20JCN
Manufacturer:
ALLIANCE
Quantity:
224
Part Number:
AS7C256A-20JCN
Manufacturer:
ALLIANCE
Quantity:
20 000
9/24/04; v.1.2
Write cycle (over the operating range)
Write waveform 1 (WE controlled)
Write waveform 2 (CE controlled)
Write cycle time
Chip enable to write end
Address setup to write end
Address setup time
Write pulse width
Write recovery time
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
Address
WE
CE
D
D
WE
D
out
in
in
Parameter
t
AS
t
AS
Symbol
t
t
t
t
t
t
t
t
t
t
t
WC
CW
AW
WR
DW
OW
WP
AH
DH
WZ
AS
Alliance Semiconductor
9
9
t
WZ
t
AW
Min
9
10
8
8
0
7
0
0
5
0
–
3
t
AW
t
-10
CW
t
t
WC
WC
Max
t
WP
–
–
–
–
–
–
–
–
–
5
–
t
DW
Data valid
Min
12
8
8
0
8
0
0
6
0
–
3
t
DW
Data valid
®
-12
Max
–
–
–
–
–
–
–
–
–
6
–
t
AH
t
DH
t
OW
Min
15
10
10
0
9
0
0
8
0
–
3
t
WR
-15
t
t
t
WR
AH
DH
Max
–
–
–
–
–
–
–
–
–
7
–
Min
20
12
12
12
10
0
0
0
0
–
3
-20
Max
–
–
–
–
–
–
–
–
–
8
–
P. 5 of 9
AS7C256A
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
3,4
3,4
3,4