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XR-558

Exar
Part Number XR-558
Manufacturer Exar
Description Quad Timing Circuits
Published Apr 5, 2018
Detailed Description XR-558/559 Quad Timing Circuits GENERAL DESCRIPTION The XR-558 and the XR-559 quad timing circuits contain four indepen...
Datasheet PDF File XR-558 PDF File

XR-558
XR-558

Overview
XR-558/559 Quad Timing Circuits GENERAL DESCRIPTION The XR-558 and the XR-559 quad timing circuits contain four independent timer sections on a single monolithic chip.
Each of the timer sections on the chip are entirely independent, and each one can produce a time delay from microseconds to minutes, as set by an external R-C network.
Each timer has its separate trigger terminal, but all four timers in the IC package share a common reset control.
Both the XR-558 and the XR-559 quad timer circuits are "edge-triggered" devices, so that each timer section can be cascaded, or connected in tandem, with other timer sections, without requiring coupling capacitors.
The XR-558 is designed with open-c...


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