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CD74HCT4520 - Dual Synchronous Counters

This page provides the datasheet information for the CD74HCT4520, a member of the CD74HC4518 Dual Synchronous Counters family.

Datasheet Summary

Description

The CD74HC4518 is a dual BCD up-counter.

The ’HC4520 and CD74HCT4520 are dual binary up-counters.

Each device consists of two independent internally synchronous 4-stage counters.

Features

  • Positive or Negative Edge Triggering.
  • Synchronous Internal Carry Propagation.
  • Fanout (Over Temperature Range) - Standard Outputs.
  • 10 LSTTL Loads - Bus Driver Outputs.
  • . . . 15 LSTTL Loads.
  • Wide Operating Temperature Range . . . -55oC to 125oC.
  • Balanced Propagation Delay and Transition Times.
  • Significant Power Reduction Compared to LSTTL Logic ICs.
  • HC Types - 2V to 6V Operation - High Noise I.

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Datasheet preview – CD74HCT4520

Datasheet Details

Part number CD74HCT4520
Manufacturer Texas Instruments
File Size 899.06 KB
Description Dual Synchronous Counters
Datasheet download datasheet CD74HCT4520 Datasheet
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Full PDF Text Transcription

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Data sheet acquired from Harris Semiconductor SCHS216D November 1997 - Revised October 2003 CD74HC4518, CD54HC4520, CD74HC4520, CD74HCT4520 High-Speed CMOS Logic Dual Synchronous Counters [ /Title (CD74 HC451 8, CD74 HC452 0, CD74 HCT45 20) /Subject Features • Positive or Negative Edge Triggering • Synchronous Internal Carry Propagation • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating Temperature Range . . . -55oC to 125oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTL Logic ICs • HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V • HCT Types - 4.5V to 5.
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