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XR-555

Part Number	XR-555
Manufacturer	Exar
Description	Timing Circuit
Published	Apr 5, 2018
Detailed Description	XR-555 Timing Circuit GENERAL DESCRIPTION The XR-555 monolithic timing circuit is a highly stable controller capable ...
Datasheet	XR-555 PDF File

Overview

XR-555 Timing Circuit GENERAL DESCRIPTION The XR-555 monolithic timing circuit is a highly stable controller capable of producing accurate timing pulses.
It is a direct, pin-for-pin replacement for the SEINE 555 timer.
The circuit contains independent control terminals for triggering or resetting if desired.
In the monostable mode of operation, the time delay is controlled by one external resistor and one capacitor.
For astable operation as an oscillator, the free-running frequency and the duty cycle are accurately controlled with two external resistors and one capacitor (as shown in Figure 2).
The XR-555 may be triggered or reset on falling waveforms.
Its output can source or sink up t...

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