W24257A Winbond, W24257A Datasheet - Page 2

• Manufacturer Part Number: W24257A
• Description: 32K X 8 High Speed CMOS Static RAM
• Manufacturer: Winbond

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.
TRUTH TABLE
OPERATING CHARACTERISTICS
(V
Note: Typical characteristics are at V
Supply Voltage to V
Input/Output to V
Allowable Power Dissipation
Storage Temperature
Operating Temperature
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
DD
CS
H
L
L
L
= 5V 10%, V
PARAMETER
OE
H
X
X
L
SS
= 0V, T
SS
PARAMETER
SS
Potential
WE
A
H
H
X
L
Potential
= 0 to 70 C)
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
= 5V, T
V
V
or OE = V
I
I
Cycle = MIN
Duty = 100%
Cycle = MIN, Duty = 100%
CS = V
CS = V
CS
OL
OH
IN
I/O
A
= +8.0 mA
MODE
= 25 C.
= V
= -4.0 mA
= V
TEST CONDITIONS
V
SS
DD
IL,
IH
SS
I/O = 0 mA
to V
IH
-0.2V
to V
or WE = V
- 2 -
DD
DD,
-
-
CS = V
IL
I/O1 I/O8
High Z
High Z
Data Out
Data In
-0.5 to V
IH
10
12
15
20
-0.5 to +7.0
-65 to +150
RATING
0 to +70
1.0
MIN.
+2.2
DD
-0.5
-10
-10
2.4
-
-
-
-
-
-
+0.5
TYP.
-
-
-
-
-
-
-
-
-
-
-
V
I
I
I
I
DD
SB
DD
DD
DD
V
, I
CURRENT
W24257A
DD
MAX.
+0.8
SB1
+10
+10
170
160
150
140
0.4
30
10
-
+0.5
UNIT
W
V
V
C
C
UNIT
mA
mA
mA
mA
mA
mA
V
V
V
V
A
A