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CD74HC244 Datasheet

High-speed CMOS Logic Octal Buffer/line Drivers

Manufacturer: Texas Instruments

This datasheet includes multiple variants, all published together in a single manufacturer document.

CD74HC244 Overview

The ’HC240 and ’HCT240 are inverting three-state buffers having two active-low output enables. The CD74HC241, ’HCT241, ’HC244 and ’HCT244 are non-inverting three-state buffers that differ only in that the 241 has one active-high and one active-low output enable, and the 244 has two active-low output enables. All three types have identical pinouts.

CD74HC244 Key Features

  • HC/HCT240 Inverting
  • HC/HCT241 Non-inverting
  • HC/HCT244 Non-inverting
  • Typical propagation delay = 8ns at VCC = 5 V
  • Three-state outputs
  • Buffered inputs
  • High-current bus driver outputs
  • Fanout (over temperature range)
  • Standard outputs: 10 LSTTL loads
  • Bus driver outputs: 15 LSTTL loads

CD74HC244 Distributor