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HEF4528B

Part Number	HEF4528B
Manufacturer	nexperia
Description	Dual monostable multivibrator
Published	Jul 24, 2019
Detailed Description	HEF4528B Dual monostable multivibrator Rev. 11 — 4 March 2022 Product data sheet 1. General description The HEF4528B i...
Datasheet	HEF4528B PDF File

Overview

HEF4528B Dual monostable multivibrator Rev.
11 — 4 March 2022 Product data sheet 1.
General description The HEF4528B is a dual retriggerable-resetable monostable multivibrator.
Each multivibrator has an active LOW input (nA), and active HIGH input (nB), an active LOW clear direct input (nCD), an output (nQ) and its complement (nQ), and two external timing component connecting pins (nCEXT, always connected to ground, and nREXT/CEXT).
An external timing capacitor (CEXT) must be connected between nCEXT and nREXT/CEXT and an external resistor (REXT) must be connected between nREXT/CEXT and VDD.
The output pulse duration is determined by the external timing components CEXT and REXT.
A HIGH-to-LOW transition on nA when nB is LOW or a LOW-to-HIGH transition on nB when nA is HIGH produces a positive pulse (LOW-HIGH-LOW) on nQ and a negative pulse (HIGH-LOW-HIGH) on nQ if the nCD is HIGH.
A LOW on nCD forces nQ LOW, nQ HIGH and inhibits any further pulses until nCD is HIGH.
It operates over a...

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