
June 15, 2004 SRAM_Type01_02A0
SRAM
153
A d v a n c e I n f o r m a t i o n
Functional Description
4M Version F, 4M version G, 8M version C
Note:
X means don’t care (must be low or high state).
Byte Mode
CS1#
CS2
OE#
WE#
BYTE#
SA
LB#
UB#
IO
0~7
IO
8~15
Mode
Power
H
X
X
X
X
X
X
X
High-Z
High-Z
Deselected
Standby
X
L
X
X
X
X
X
X
High-Z
High-Z
Deselected
Standby
X
X
X
X
X
X
H
H
High-Z
High-Z
Deselected
Standby
L
H
H
H
V
CC
X
L
X
High-Z
High-Z
Output Disabled
Active
L
H
H
H
V
CC
X
X
L
High-Z
High-Z
Output Disabled
Active
L
H
L
H
V
CC
X
L
H
D
out
High-Z
Lower Byte Read
Active
L
H
L
H
V
CC
X
H
L
High-Z
D
out
Upper Byte Read
Active
L
H
L
H
V
CC
X
L
L
D
out
D
out
Word Read
Active
L
H
X
L
V
CC
X
L
H
D
in
High-Z
Lower Byte Write
Active
L
H
X
L
V
CC
X
H
L
High-Z
D
in
Upper Byte Write
Active
L
H
X
L
V
CC
X
L
L
D
in
D
in
Word Write
Active
CS1#
CS2
OE#
WE#
BYTE#
SA
LB#
UB#
IO
0~7
IO
8~15
Mode
Power
H
X
X
X
X
X
X
X
High-Z
High-Z
Deselected
Standby
X
L
X
X
X
X
X
X
High-Z
High-Z
Deselected
Standby
L
H
H
H
X
X
H
H
High-Z
High-Z
Deselected
Standby
L
H
L
L
V
CC
X
L
X
High-Z
High-Z
Output Disabled
Active
L
H
X
L
V
CC
X
X
L
High-Z
High-Z
Output Disabled
Active