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74LS13

Description
SCHMITT TRIGGERS DUAL GATE/HEX INVERTER
File Size32KB,3 Pages
ManufacturerMotorola ( NXP )
Websitehttps://www.nxp.com
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74LS13 Overview

SCHMITT TRIGGERS DUAL GATE/HEX INVERTER

SCHMITT TRIGGERS
DUAL GATE/HEX INVERTER
The SN54LS/ 74LS13 and SN54LS / 74LS14 contain 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
14
13
SN54 / 74LS13
12
11
10
9
8
SN54/74LS13
SN54/74LS14
SCHMITT TRIGGERS
DUAL GATE/ HEX INVERTER
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 632-08
14
1
14
1
N SUFFIX
PLASTIC
CASE 646-06
1
2
3
4
5
6
7
GND
14
1
D SUFFIX
SOIC
CASE 751A-02
VCC
14
13
SN54 / 74LS14
12
11
10
9
8
ORDERING INFORMATION
SN54LSXXJ
SN74LSXXN
SN74LSXXD
Ceramic
Plastic
SOIC
1
2
3
4
5
6
7
GND
GUARANTEED OPERATING RANGES
Symbol
VCC
TA
IOH
IOL
Supply Voltage
Operating Ambient Temperature Range
Output Current — High
Output Current — Low
Parameter
54
74
54
74
54, 74
54
74
Min
4.5
4.75
– 55
0
Typ
5.0
5.0
25
25
Max
5.5
5.25
125
70
– 0.4
4.0
8.0
Unit
V
°C
mA
mA
FAST AND LS TTL DATA
5-24
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