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HEF4541B

nexperia
Part Number HEF4541B
Manufacturer nexperia
Description Programmable timer
Published May 19, 2018
Detailed Description HEF4541B Programmable timer Rev. 6 — 25 November 2021 Product data sheet 1. General description The HEF4541B is a prog...
Datasheet PDF File HEF4541B PDF File

HEF4541B
HEF4541B

Overview
HEF4541B Programmable timer Rev.
6 — 25 November 2021 Product data sheet 1.
General description The HEF4541B is a programmable timer.
It consists of a 16-stage binary counter, an integrated oscillator to be used with external timing components, an automatic power-on reset and output control logic.
The external components RTC and CTC determines the frequency of the oscillator within the frequency range 1 Hz to 100 kHz.
An external clock signal at input RS can replace the oscillator.
The timer advances on the positive-going transition of RS.
A LOW on the auto reset input (AR) and a LOW on the master reset input (MR) enables the internal power-on reset.
A HIGH level at input MR resets the counter independent on all other inputs.
Resetting, disables the oscillator to provide no active power dissipation.
A HIGH at input AR turns off the power-on reset to provide a low quiescent power dissipation of the timer.
The 16-stage counter divides the oscillator frequency by 28, 210, 213 or 216 dep...


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