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  ON Semiconductor Electronic Components Datasheet  

SN74LS14N Datasheet

Dual Gate/Hex Inverter

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SN74LS14
Schmitt Triggers
Dual Gate/Hex Inverter
The SN74LS14 contains logic gates / inverters which accept
standard TTL input signals and provide standard TTL output levels.
They are capable of transforming slowly changing input signals into
sharply defined, jitter-free output signals. Additionally, they have
greater noise margin than conventional inverters.
Each circuit contains a Schmitt trigger followed by a Darlington
level shifter and a phase splitter driving a TTL totem pole output. The
Schmitt trigger uses positive feedback to effectively speed-up slow
input transitions, and provide different input threshold voltages for
positive and negative-going transitions. This hysteresis between the
positive-going and negative-going input thresholds (typically
800 mV) is determined internally by resistor ratios and is essentially
insensitive to temperature and supply voltage variations.
LOGIC AND CONNECTION DIAGRAMS
VCC
SN74LS14
14 13 12 11 10 9 8
http://onsemi.com
LOW
POWER
SCHOTTKY
14
1
PLASTIC
N SUFFIX
CASE 646
1234567
GND
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min Typ Max Unit
VCC
Supply Voltage
TA
Operating Ambient
Temperature Range
4.75 5.0 5.25
V
0
25
70
°C
IOH
Output Current High
IOL
Output Current Low
0.4 mA
8.0
mA
14
1
SOIC
D SUFFIX
CASE 751A
ORDERING INFORMATION
Device
Package
Shipping
SN74LS14N
14 Pin DIP 2000 Units/Box
SN74LS14D
SOIC14 55 Units/Rail
SN74LS14DR2
SOIC14 2500/Tape & Reel
© Semiconductor Components Industries, LLC, 2006
1
June, 2006 Rev. 2
Publication Order Number:
SN74LS14/D


  ON Semiconductor Electronic Components Datasheet  

SN74LS14N Datasheet

Dual Gate/Hex Inverter

No Preview Available !

SN74LS14
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VT+
Positive-Going Threshold Voltage
1.5
2.0
V
VCC = 5.0 V
VT
Negative-Going Threshold Voltage
0.6
1.1
V
VCC = 5.0 V
VT+ VTHysteresis
0.4 0.8
V
VCC = 5.0 V
VIK
Input Clamp Diode Voltage
0.65 1.5
V
VCC = MIN, IIN = 18 mA
VOH
Output HIGH Voltage
2.7 3.4
V
VCC = MIN, IOH = 400 μA, VIN = VIL
VOL
Output LOW Voltage
0.25 0.4
0.35 0.5
V
VCC = MIN, IOL = 4.0 mA, VIN = 2.0 V
V
VCC = MIN, IOL = 8.0 mA, VIN = 2.0 V
IT+
Input Current at Positive-Going Threshold
0.14
mA VCC = 5.0 V, VIN = VT+
IT
Input Current at Negative-Going Threshold
0.18
mA VCC = 5.0 V, VIN = VT
IIH
Input HIGH Current
1.0 20
μA
VCC = MAX, VIN = 2.7 V
0.1
mA VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
0.4 mA VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
20
100 mA VCC = MAX, VOUT = 0 V
Power Supply Current
8.6 16
ICC
Total, Output HIGH
mA
12
21
Total, Output LOW
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
VCC = MAX
AC CHARACTERISTICS (TA = 25°C)
Symbol
Parameter
tPLH
Propagation Delay, Input to Output
tPHL
Propagation Delay, Input to Output
Max
Unit
22
ns
22
ns
Test Conditions
VCC = 5.0 V
CL = 15 pF
3V
VIN
0V
VOUT
1.6 V
tPHL
1.3 V
0.8 V
tPLH
1.3 V
Figure 1. AC Waveforms
http://onsemi.com
2


Part Number SN74LS14N
Description Dual Gate/Hex Inverter
Maker ON Semiconductor
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SN74LS14N Datasheet PDF






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