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74HCT123 - Dual retriggerable monostable multivibrator

Download the 74HCT123 datasheet PDF. This datasheet also covers the 74HC123 variant, as both devices belong to the same dual retriggerable monostable multivibrator family and are provided as variant models within a single manufacturer datasheet.

General Description

The 74HC123; 74HCT123 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL).

They are specified in compliance with JEDEC standard no.

7A.

Key Features

  • DC triggered from active HIGH or active LOW inputs.
  • Retriggerable for very long pulses up to 100 % duty factor.
  • Direct reset terminates output pulse.
  • Schmitt-trigger action on all inputs except for the reset input.
  • ESD protection:.
  • HBM JESD22-A114F exceeds 2000 V.
  • MM JESD22-A115-A exceeds 200 V.
  • Specified from 40 C to +85 C and from 40 C to +125 C NXP Semiconductors 74HC123; 74HCT123 Dual retriggerable monostable multivibrator with reset 3. Order.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (74HC123-NXP.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
74HC123; 74HCT123 Dual retriggerable monostable multivibrator with reset Rev. 10 — 3 December 2015 Product data sheet 1. General description The 74HC123; 74HCT123 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC123; 74HCT123 are dual retriggerable monostable multivibrators with output pulse width control by three methods: 1. The basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT). 2. Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB).