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Logic Gate NOR 74HC02

Logic Gate NOR 74HC02

The 74HC02 is a CMOS logic integrated circuit that contains four independent 2 input NOR gates in a single 14 pin package. It is commonly used in digital logic circuits where low power consumption and reliable operation are required. The device operates with a wide supply voltage range and is suitable for both hobby and professional electronic designs.

Package Includes

  • 1 x 74HC02 Quad 2 Input NOR Gate IC

NOR Logic Gate
5.25 AED 5.25 AED (Tax included)

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A NOR gate produces a logic high output only when all of its inputs are at logic low. If any input is logic high the output switches to logic low. The operation of a 2 input NOR gate can be described as if both inputs A and B are not true then the output Q is true.

Features

  • Four independent 2 input NOR gates in one IC
  • CMOS technology for low power consumption
  • Wide operating voltage range
  • Standard 14 pin DIP package
  • Suitable for general purpose digital logic applications

Specifications

  • Logic type NOR
  • Number of gates 4
  • Inputs per gate 2
  • Output current 5.2 mA
  • Supply voltage minimum 2 V
  • Supply voltage maximum 6 V
  • Package type DIP
  • Number of pins 14

Pin Description

  • Pin 14 VDD Supply voltage
  • Pin 7 GND Ground
  • Pins 1 5 8 12 Inputs A for gates 1 to 4
  • Pins 2 6 9 13 Inputs B for gates 1 to 4
  • Pins 3 4 10 11 Outputs Q for gates 1 to 4

Logic Operation

Truth table for a 2 input NOR gate

  • A 0 B 0 Output 1
  • A 0 B 1 Output 0
  • A 1 B 0 Output 0
  • A 1 B 1 Output 0

Boolean expression Q equals NOT of A OR B