Datasheet4U Logo Datasheet4U.com

74LS90 - Decade and Binary Counters

Datasheet Summary

Description

Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the DM74LS90.

Features

  • s Typical power dissipation 45 mW s Count frequency 42 MHz Ordering Code: Order Number DM74LS90M DM74LS90N Package Number M14A N14A Package.

📥 Download Datasheet

Datasheet preview – 74LS90

Datasheet Details

Part number 74LS90
Manufacturer Fairchild Semiconductor
File Size 61.43 KB
Description Decade and Binary Counters
Datasheet download datasheet 74LS90 Datasheet
Additional preview pages of the 74LS90 datasheet.

📁 Similar Datasheet

  • 74LS90 - Decade and Binary Counters (National Semiconductor)
  • 74LS90 - DECADE COUNTER (Motorola)
  • 74LS90 - DECADE COUNTER (ETC)
  • 74LS90 - DIVIDE-BY-TWELVE AND BINARY COUNTERS (Texas Instruments)
  • 74LS91 - 8 Bit SHift Registers (Raytheon)
  • 74LS91 - 8-BIT SHIFT REGISTER (Texas Instruments)
  • 74LS92 - Divide-by-Twelve Counters (Hitachi Semiconductor)
  • 74LS92 - DECADE COUNTER (Motorola)
  • 74LS92 - DIVIDE-BY-TWELVE AND BINARY COUNTERS (Texas Instruments)
  • 74LS93 - DIVIDE-BY-SIXTEEN COUNTER (ETC)
Other Datasheets by Fairchild Semiconductor
  • 74LS00 - Quad 2-Input NAND Gate
  • 74LS02 - Quad 2-Input NOR Gate
  • 74LS03 - Quad 2-Input NAND Gates
  • 74LS04 - Hex Inverting Gates
  • 74LS05 - Hex Inverters
  • 74LS08 - Quad 2-Input AND Gates
  • 74LS09 - Quad 2-Input AND Gates
  • 74LS10 - Triple 3-Input NAND Gate

Full PDF Text Transcription

Click to expand full text
DM74LS90 Decade and Binary Counters August 1986 Revised March 2000 DM74LS90 Decade and Binary Counters General Description Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the DM74LS90. All of these counters have a gated zero reset and the DM74LS90 also has gated set-to-nine inputs for use in BCD nine’s complement applications. To use their maximum count length (decade or four bit binary), the B input is connected to the QA output. The input count pulses are applied to input A and the outputs are as described in the appropriate truth table.
Published: |