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
V
CC
14
13
SN74LS14
12
11
10
9
8
14
1
http://onsemi.com
LOW
POWER
SCHOTTKY
PLASTIC
N SUFFIX
CASE 646
1
2
3
4
5
6
7
GND
14
1
GUARANTEED OPERATING RANGES
Symbol
V
CC
T
A
I
OH
I
OL
Parameter
Supply Voltage
Operating Ambient
Temperature Range
Output Current
−
High
Output Current
−
Low
Min
4.75
0
Typ
5.0
25
Max
5.25
70
−0.4
8.0
Unit
V
°C
mA
mA
SOIC
D SUFFIX
CASE 751A
ORDERING INFORMATION
Device
SN74LS14N
SN74LS14D
SN74LS14DR2
Package
14 Pin DIP
SOIC−14
SOIC−14
Shipping
2000 Units/Box
55 Units/Rail
2500/Tape & Reel
©
Semiconductor Components Industries, LLC, 2006
June, 2006
−
Rev. 2
1
Publication Order Number:
SN74LS14/D
ONSEMI [ ON SEMICONDUCTOR ]
