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XR-558 - Quad Timing Circuits

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.

Features

  • Four Independent Timer Sections High C.

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Datasheet preview – XR-558

Datasheet Details

Part number XR-558
Manufacturer Exar
File Size 212.74 KB
Description Quad Timing Circuits
Datasheet download datasheet XR-558 Datasheet
Additional preview pages of the XR-558 datasheet.

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Full PDF Text Transcription

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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-collector outputs; each output can sink up to 100 mA.
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