SRAM
Austin Semiconductor, Inc.
AS5C2568
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Note 5) (-55
o
C < T
C
< 125
o
C or -40
o
C to +85
o
C; V
CC
= 5.0V +10%)
DESCRIPTION
READ CYCLE
READ cycle time
Address access time
Chip enable access time
Output hold from address change
Chip enable to output in Low-Z
Chip disable to output in High-Z
Chip enable to power-up time
Chip disable to power-down time
Output enable to access time
Output enable to output in Low-Z
Output disable to output in High-Z
WRITE CYCLE
WRITE cycle time
Chip enable to end of write
Address valid to end of write
Address setup time
Address hold from end of write
WRITE pulse width
Data setup time
Data hold time
Write disable to output in Low-Z
Write enable to output in High-Z
t
WC
t
CW
t
AW
t
AS
t
AH
t
WP
t
DS
t
DH
t
LZWE
t
HZWE
12
9
9
0
0
10
7
0
2
0
7
15
10
10
0
0
12
8
0
2
0
7
20
12
12
0
0
15
10
0
2
0
9
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
7
6, 7
t
RC
t
AA
t
ACE
t
OH
t
LZCE
t
HZCE
t
PU
t
PD
t
AOE
t
LZOE
t
HZOE
0
6
0
12
6
0
7
2
2
7
0
15
7
0
8
12
12
12
2
2
8
0
20
8
15
15
15
2
2
9
20
20
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
6
7
6, 7
4
4
SYM
-12
MIN
MAX
-15
MIN MAX
-20
MIN
MAX
UNITS NOTES
AS5C2568
Rev. 2.0 12/00
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
4