IN74ACT257
MAXIMUM RATINGS
*
Symbol
Parameter
Value
V
CC
DC Supply Voltage (Referenced to GND)
-0.5 to +7.0
V
IN
DC Input Voltage (Referenced to GND)
-0.5 to V
CC
+0.5
V
OUT
DC Output Voltage (Referenced to GND)
-0.5 to V
CC
+0.5
I
IN
DC Input Current, per Pin
±20
I
OUT
DC Output Sink/Source Current, per Pin
±50
I
CC
DC Supply Current, V
CC
and GND Pins
±50
P
D
Power Dissipation in Still Air, Plastic
DIP+
750
SOIC Package+
500
Tstg
Storage Temperature
-65 to +150
T
L
Lead Temperature, 1 mm from Case for 10
260
Seconds
(Plastic DIP or SOIC Package)
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
V
CC
DC Supply Voltage (Referenced to GND)
V
IN
, V
OUT
DC Input Voltage, Output Voltage (Referenced to GND)
T
J
Junction Temperature (PDIP)
T
A
Operating Temperature, All Package Types
I
OH
Output Current - High
I
OL
Output Current - Low
t
r
, t
f
Input Rise and Fall Time
*
V
CC
=4.5
V
V
CC
=5.5 V
(except Schmitt Inputs)
*
V
IN
from 0.8 V to 2.0 V
Min
4.5
0
-40
Max
5.5
V
CC
140
+85
-24
24
10
8.0
Unit
V
V
V
mA
mA
mA
mW
°C
°C
0
0
Unit
V
V
°C
°C
mA
mA
ns/V
This device contains protection circuitry to guard against damage due to high static voltages or
electric fields. However, precautions must be taken to avoid applications of any voltage higher than
maximum rated voltages to this high-impedance circuit. For proper operation, V
IN
and V
OUT
should be
constrained to the range GND≤(V
IN
or V
OUT
)≤V
CC
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V
CC
).
Unused outputs must be left open.
2