Y

A

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SN5414, SN54LS14, SN7414, SN74LS14

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SDLS049C – DECEMBER 1983 – REVISED NOVEMBER 2016

Product Folder Links: SN5414 SN54LS14 SN7414 SN74LS14

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Copyright © 1983–2016, Texas Instruments Incorporated

8 Detailed Description

8.1 Overview

The SNx414 and SNx4LS14 Schmitt-Trigger devices contain six independent inverters. They perform the

Boolean function Y = A in positive logic.

Schmitt-Trigger inputs are designed to provide a minimum separation between positive and negative switching

thresholds. This allows for noisy or slow inputs that would cause problems such as oscillation or excessive

current draw with normal CMOS inputs.

8.2 Functional Block Diagram

8.3 Feature Description

The device can operate from very slow transition edge inputs. This device has high noise immunity.

8.4 Device Functional Modes

Table 1 lists the functional modes of the SNx414 and SNx4LS14.

Table 1. Function Table

INPUT A

OUTPUT Y

H

L

L

H