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LS7212 - PROGRAMMABLE DIGITAL DELAY TIMER

Description

The LS7211/LS7212 are monolithic CMOS integrated circuits for generating digitally programmable delays.

The delay is controlled by 8 binary weighted inputs, WB0-WB7, in conjunction with an applied clock or oscillator frequency.

Features

  • 8-bit programmable delay from nanoseconds to days.
  • On chip oscillator (RC or Crystal) or external clock time base.
  • Selectable prescaler for real time delay generation based on 50Hz/60Hz time base or 32.768KHz watch crystal.
  • Four operating modes.
  • Reset input for delay abort.
  • Low quiescent and operating current.
  • Direct relay drive.
  • +4V to +18V operation (VDD-VSS).
  • LS7211/LS7212 (DIP), LS7211-S/LS7212-S (SOIC)-See Fi.

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Datasheet preview – LS7212

Datasheet Details

Part number LS7212
Manufacturer LSI Computer Systems
File Size 171.80 KB
Description PROGRAMMABLE DIGITAL DELAY TIMER
Datasheet download datasheet LS7212 Datasheet
Additional preview pages of the LS7212 datasheet.

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Full PDF Text Transcription

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LSI/CSI UL ® LS7211-7212 (631) 271-0400 FAX (631) 271-0405 June 1997 LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 A3800 PROGRAMMABLE DIGITAL DELAY TIMER FEATURES: • 8-bit programmable delay from nanoseconds to days • On chip oscillator (RC or Crystal) or external clock time base • Selectable prescaler for real time delay generation based on 50Hz/60Hz time base or 32.768KHz watch crystal • Four operating modes • Reset input for delay abort • Low quiescent and operating current • Direct relay drive • +4V to +18V operation (VDD-VSS) • LS7211/LS7212 (DIP), LS7211-S/LS7212-S (SOIC)-See Figure 1 DESCRIPTION: The LS7211/LS7212 are monolithic CMOS integrated circuits for generating digitally programmable delays.
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