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74273.md

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74273: octal D-type flip-flop

  • Type: flip-flop
  • DIP: 20-pin
  • Number of elements: 8
  • Trigger: positive edge

Description

Provides eight positive-edge triggered D-type flip-flops with a common asynchronous clear.

Inputs and outputs

Label Description Signal
Dn input n active high
Qn output n active high
CLK clock positive edge
CLR asynchronous clear active low

Function table

CLR CLK Dn Qn
H X X L
L / H H
L / L L
L X X qn0
  • H: HIGH voltage level
  • L: LOW voltage level
  • X: don't care
  • /: positive edge
  • qn0: previous state of Qn

Pin layout

Datasheets