W24L257A WINBOND [Winbond], W24L257A Datasheet - Page 2

• Manufacturer Part Number: W24L257A
• Description: 32K X 8 High Speed CMOS Static RAM
• Manufacturer: WINBOND [Winbond]

TRUTH TABLE
DC CHARACTERISTICS
Absolute Maximum Ratings
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
Operating Characteristics
(V
Note: Typical characteristics are at V
Input Low Voltage
Input High Voltage
Input Leakage Current
Output Leakage
Current
Output Low Voltage
Output High Voltage
Operating Power
Supply Current
Standby Power
Supply Current
Supply Voltage to V
Input/Output to V
Allowable Power Dissipation
Storage Temperature
Operating Temperature
DD
CS
H
L
L
L
= 3.3V
PARAMETER
5%, V
OE
H
X
X
L
SS
= 0V, Ta = 0 to 70 C)
SS
PARAMETER
SS
Potential
WE
H
H
X
L
Potential
SYM
V
V
I
I
V
V
I
I
I
LI
LO
DD
SB
SB1
DD
.
IL
IH
OL
OH
Not Selected
Output Disable
Read
Write
= 3.3V, Ta = 25 C.
V
V
or OE = V
I
I
Cycle = min.
Duty = 100%
Duty = 100%
CS = V
CS = V
CS
OL
OH
IN
I/O
= +8.0 mA
= V
= -4.0 mA
MODE
= V
V
SS
IL (max.),
IH (min.),
DD
TEST CONDITIONS
SS
to V
IH (min.)
-0.2V
to V
DD
- 2 -
DD,
I/O = 0 mA
Cycle = min.
-
-
or WE = V
CS = V
I/O1 I/O8
High Z
High Z
Data Out
Data In
IH (min.)
-0.5 to V
IL (max.)
-0.5 to +4.6
-65 to +150
RATING
0 to +70
12
15
20
1.0
DD
MIN
+2.0
-0.5
-10
-10
+0.5
2.4
-
-
-
-
-
-
.
TYP
.
-
-
-
-
-
-
-
-
-
-
-
V
I
I
I
I
DD
SB
DD
DD
DD
W24L257A
, I
V
CURRENT
DD
SB1
MAX.
+0.8
+ 10
+10
200
150
120
100
0.4
20
-
+0.3
UNIT
W
V
V
C
C
UNIT
mA
mA
mA
mA
V
V
V
V
A
A
A