IN74ACT14
H
EX
S
CHMITT
-T
RIGGER
I
NVERTER
High-Speed Silicon-Gate CMOS
The IN74ACT14 is identical in pinout to the LS/ALS14,
HC/HCT14. The IN74ACT14 may be used as a level converter
for interfacing TTL or NMOS outputs to High Speed CMOS
inputs.
The IN74ACT14 is useful to “square up” slow input rise and
fall times. Due to the hysteresis voltage of the Schmitt trigger, the
IN74ACT14 finds applications in noisy environments.
•
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0
µA;
0.1
µA
@ 25°C
Outputs Source/Sink 24 mA
•
•
•
•
ORDERING INFORMATION
IN74ACT14N Plastic
IN74ACT14D SOIC
T
A
= -40° to 85° C for all
packages
LOGIC DIAGRAM
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
Output
A
Y
L
H
H
L
PIN 14 =V
CC
PIN 7 = GND
1
IN74ACT14
MAXIMUM RATINGS
*
Symbol
Parameter
Value
Unit
V
CC
DC Supply Voltage (Referenced to GND)
-0.5 to +7.0
V
V
IN
DC Input Voltage (Referenced to GND)
-0.5 to V
CC
+0.5
V
V
OUT
DC Output Voltage (Referenced to GND)
-0.5 to V
CC
+0.5
V
I
IN
DC Input Current, per Pin
mA
±20
I
OUT
DC Output Sink/Source Current, per Pin
mA
±50
I
CC
DC Supply Current, V
CC
and GND Pins
mA
±50
P
D
Power Dissipation in Still Air, Plastic DIP+
750
mW
SOIC Package+
500
Tstg
Storage Temperature
-65 to +150
°C
260
T
L
Lead Temperature, 1 mm from Case for 10
°C
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
Max
5.5
V
CC
140
+85
-24
24
10
8.0
Unit
V
V
°C
°C
mA
mA
ns/V
-40
0
0
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
IN74ACT14
DC ELECTRICAL CHARACTERISTICS(Voltages
Referenced to GND)
V
CC
Symbol
V
OH
Parameter
Minimum
Level
Voltage
Test Conditions
V
4.5
5.5
-
min
mA
mA
4.5
5.5
4.5
5.5
Guaranteed
Limits
25
°C
-40°C
to 85°C
4.4
4.4
5.4
5.4
3.86
4.86
0.1
0.1
3.76
4.76
0.1
0.1
0.44
0.44
2.0
2.0
0.8
0.8
1.2
1.2
0.4
0.4
±1.0
1.5
75
-75
40
V
V
V
V
µA
mA
mA
mA
µA
V
Unit
V
High- I
OUT
≤
-50
µA
Output
V
IN
≤
V
T
I
OH
=-12
I
OH
=-24
I
OH
=-24 mA
Low- I
OUT
≤
50
µA
Output
*
*
V
OL
Maximum
Level
Voltage
V
IN
=≥
V
T
+max
0.36
I
OL
=12
mA 4.5
0.36
I
OL
=24
mA 5.5
I
OL
=24 mA
V
T
+max Maximum Positive- V
OUT
=0.1
V 4.5
Going
Input T
A
= Worst Case
5.5
Threshold Voltage
V
T
- min Minimum Negative- V
OUT
= V
CC
- 0.1 V 4.5
Going
Input T
A
= Worst Case
5.5
Threshold Voltage
V
H
max Maximum
V
OUT
=0.1 V or V
CC
- 0.1 4.5
5.5
Hysteresis Voltage V
T
A
= Worst Case
V
H
min
Minimum
V
OUT
=0.1 V or V
CC
- 0.1 4.5
5.5
Hysteresis Voltage V
T
A
= Worst Case
I
IN
Maximum
Input V
IN
=V
CC
or GND
5.5
±0.1
Leakage Current
Addition Quiescent V
IN
=V
CC
-2.1 V
5.5
∆I
CC
Supply Current
V
OLD
=1.65 V Max
I
OLD
+Minimum
5.5
Dynamic
Output
Current
V
OHD
=3.85 V Min
I
OHD
+Minimum
5.5
Dynamic
Output
Current
V
IN
=V
CC
or GND
I
CC
Maximum
5.5
4.0
Quiescent Supply
Current
(per Package)
*
All outputs loaded; thresholds on input associated with output under test.
+Maximum test duration 2.0 ms, one output loaded at a time.
Note: V
H
=(V
T
+)-(V
T
-)
.
3
IN74ACT14
AC ELECTRICAL CHARACTERISTICS(V
CC
=5.0 V
±
10%, C
L
=50pF,Input t
r
=t
f
=3.0 ns)
Guaranteed Limits
Unit
Symbol
Parameter
25
°C
-40°C to
85°C
Min Max Min Max
t
PLH
Propagation Delay, Input A to Output Y 1.5 11.5 1.0 12.5
ns
(Figure 1)
t
PHL
Propagation Delay, Input A to Output Y 1.5 10.0 1.0 11.0
ns
(Figure 1)
C
IN
Maximum Input Capacitance
4.5
4.5
pF
Typical @25°C,V
CC
=5.0
V
25
C
PD
Power Dissipation Capacitance
pF
Figure 1. Switching Waveforms
4
Embedded System
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