厂商Motorola, Inc 74LS14 数据手册，datasheet pdf下载

型号：	74LS14
厂商：	Motorola, Inc
描述：	schmitt triggers dual gate/hex inverter
PDF：	预览
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SN54/74LS13

SN54/74LS14

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

sharplydefined, jitter-freeoutputsignals. Additionally, theyhavegreaternoise

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.

SCHMITT TRIGGERS

DUAL GATE/HEX INVERTER

LOW POWER SCHOTTKY

J SUFFIX

CERAMIC

CASE 632-08

LOGIC AND CONNECTION DIAGRAMS

SN54/74LS13

N SUFFIX

PLASTIC

CASE 646-06

D SUFFIX

SOIC

CASE 751A-02

GND

SN54/74LS14

ORDERING INFORMATION

SN54LSXXJ

SN74LSXXN

SN74LSXXD

Ceramic

Plastic

SOIC

GND

GUARANTEED OPERATING RANGES

Symbol

Parameter

Min

Typ

Max

Unit

Supply Voltage

4.5

4.75

5.0

5.5

5.25

Operating Ambient Temperature Range

–55

125

°C

Output Current — High

Output Current — Low

54, 74

–0.4

4.0

8.0

FAST AND LS TTL DATA

5-24