74AHCT123A Datasheet PDF (Dual retriggerable monostable multivibrator)

74AHCT123A - Dual retriggerable monostable multivibrator

Download the 74AHCT123A datasheet PDF (74AHC123A included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for dual retriggerable monostable multivibrator.

Description

The 74AHC123A; 74AHCT123A is a dual retriggerable monostable multivibrator with reset.

The basic output pulse width is programmed by selection of external components (REXT and CEXT).

Features

Wide supply voltage range from 2.0 V to 5.5 V.
DC triggered from active HIGH or active LOW inputs.
Retriggerable for very long pulses up to 100 % duty factor.
Direct reset terminates output pulse.
Overvoltage tolerant inputs to 5.5 V.
All inputs have a Schmitt-trigger action.
High noise immunity.
Input levels:.
For 74AHC123A: CMOS level.
For 74AHCT123A: TTL level.
ESD protection:.
HBM JES.

Datasheet Details

Part number	74AHCT123A
Manufacturer	nexperia
File Size	297.49 KB
Description	Dual retriggerable monostable multivibrator
Datasheet	74AHCT123A Datasheet

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Full PDF Text Transcription

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74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset Rev. 5 — 17 June 2020 Product data sheet 1. General description The 74AHC123A; 74AHCT123A is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXT and CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD. Inputs are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments. 2.

Published: Jul 23, 2019 |