W24257A
DC CHARACTERISTICS
Absolute Maximum Ratings
PARAMETER
Supply Voltage to V
SS
Potential
Input/Output to V
SS
Potential
Allowable Power Dissipation
Storage Temperature
Operating Temperature
RATING
-0.5 to +7.0
-0.5 to V
DD
+0.5
1.0
-65 to +150
0 to +70
UNIT
V
V
W
°C
°C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
TRUTH TABLE
CS
H
L
L
L
OE
X
H
L
X
WE
X
H
H
L
MODE
Not Selected
Output Disable
Read
Write
I/O1−I/O8
High Z
High Z
Data Out
Data In
V
DD
CURRENT
I
SB
, I
SB1
I
DD
I
DD
I
DD
OPERATING CHARACTERISTICS
(V
DD
= 5V
±10%,
V
SS
= 0V, T
A
= 0 to 70° C)
PARAMETER
Input Low Voltage
Input High Voltage
Input Leakage Current
Output Leakage
Current
Output Low Voltage
Output High Voltage
Operating Power
Supply Current
SYM.
V
IL
V
IH
I
LI
I
LO
V
OL
V
OH
I
DD
TEST CONDITIONS
-
-
V
IN
= V
SS
to V
DD
V
I/O
= V
SS
to V
DD,
CS = V
IH
or OE = V
IH
or WE = V
IL
I
OL
= +8.0 mA
I
OH
= -4.0 mA
10
CS = V
IL,
I/O = 0 mA
Cycle = MIN
Duty = 100%
12
15
20
MIN.
-0.5
+2.2
-10
-10
-
2.4
-
-
-
-
-
TYP.
-
-
-
-
-
-
-
-
-
-
-
MAX.
+0.8
V
DD
+0.5
+10
+10
0.4
-
170
160
150
140
30
10
UNIT
V
V
µA
µA
V
V
mA
mA
mA
mA
mA
mA
Standby Power
Supply Current
I
SB
I
SB1
CS = V
IH
Cycle = MIN, Duty = 100%
CS
≥
V
DD
-0.2V
Note: Typical characteristics are at V
DD
= 5V, T
A
= 25° C.
-2-
WINBOND [ WINBOND ]
