SL74LS14
Hex Schmitt-Trigger Inverter
This device contains six independent gates each of which performs
the logic INVERT function. Each input has hysteresis which increases
the noise immunity and transforms a slowly changing input signal to a
fast changing, jitter free output.
ORDERING INFORMATION
SL74LS14N Plastic
SL74LS14D SOIC
T
A
= 0° to 70° C for all
packages
LOGIC DIAGRAM
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
A
L
H
PIN 14 =V
CC
PIN 7 = GND
Output
Y
H
L
SLS
System Logic
Semiconductor
SL74LS14
MAXIMUM RATINGS
*
Symbol
V
CC
V
IN
V
OUT
Tstg
*
Parameter
Supply Voltage
Input Voltage
Output Voltage
Storage Temperature Range
Value
7.0
7.0
5.5
-65 to +150
Unit
V
V
V
°C
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
I
OH
I
OL
T
A
Supply Voltage
High Level Output Current
Low Level Output Current
Ambient Temperature Range
0
Parameter
Min
4.75
Max
5.25
-15
24
+70
Unit
V
mA
mA
°C
DC ELECTRICAL CHARACTERISTICS
over full operating conditions
Guaranteed Limit
Symbol
V
T+ -
V
T- -
V
T+
- V
T-
V
IK
V
OH
V
OL
Parameter
Positive-Going Input Threshold
Voltage
Negative-Going Input Threshold
Voltage
Hysteresis
Input Clamp Voltage
High Level Output Voltage
Low Level Output Voltage
Test Conditions
V
CC
= 5 V
V
CC
= 5 V
V
CC
= 5 V
V
CC
= min, I
IN
= -18 mA
V
CC
= min, I
OH
= -0.4 mA,
V
I
=0.5 V
V
CC
= min, I
OL
= 4 mA
V
I
=1.9 V
V
CC
= min, I
OL
= 8 mA
V
I
=1.9 V
I
IH
High Level Input Current
V
CC
= max, V
IN
= 2.7 V
V
CC
= max, V
IN
= 7.0 V
I
IL
I
O
I
CC
Low Level Input Current
Output Short Circuit Current
Supply Current
Total with
outputs high
Total with
outputs low
V
CC
= max, V
IN
= 0.4 V
V
CC
= max, V
O
=0 V
(Note 1)
V
CC
= max
-20
2.7
0.4
0.5
20
0.1
-0.4
-100
16
21
µA
mA
mA
mA
mA
Min
0.5
1.4
0.4
-1.5
Max
1
1.9
Unit
V
V
V
V
V
V
SLS
System Logic
Semiconductor
SL74LS14
Note 1: Not more than one output should be shorted at a time, and the duration should not exceed one second.
SLS
System Logic
Semiconductor
SL74LS14
AC ELECTRICAL CHARACTERISTICS
(T
A
= 25°C, V
CC
= 5.0 V, C
L
= 15 pF,
R
L
= 2 kΩ, t
r
= 15 ns, t
f
= 6.0 ns)
Symbol
t
PLH
t
PHL
Parameter
Propagation Delay, Input A to Output Y
Propagation Delay, Input A to Output Y
Min
Max
22
22
Unit
ns
ns
Figure 1. Switching Waveforms
NOTES A. C
L
includes probe and jig capacitance.
B. All diodes are 1N916 or 1N3064.
Figure 2. Test Circuit
SLS
System Logic
Semiconductor
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