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7420: dual 4-input NAND gate

  • Type: gate
  • DIP: 14-pin
  • Number of elements: 2
  • Inputs per element: 4
  • Outputs per element: 1

Description

Provides two NAND gates with four inputs and an output each.

Inputs and outputs

Label Description
An first input of gate n
Bn second input of gate n
Cn third input of gate n
Dn fourth input of gate n
Yn output of gate n

Function table

An Bn Cn Dn Yn
L X X X H
X L X X H
X X L X H
X X X L H
H H H H L
  • H: HIGH voltage level
  • L: LOW voltage level
  • X: don't care

Pin layout

Datasheets