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MM74HC688 Datasheet 8-bit Magnitude Comparator (equality Detector)

Manufacturer: Fairchild (now onsemi)

Overview: MM74HC688 8-Bit Magnitude Comparator (Equality Detector) September 1983 Revised February 1999 MM74HC688 8-Bit Magnitude Comparator (Equality.

General Description

The MM74HC688 equality detector utilizes advanced silicon-gate CMOS technology to compare bit for bit two 8-bit words and indicates whether or not they are equal.

The P=Q output indicates equality when it is LOW.

A single active low enable is provided to facilitate cascading of several packages and enable comparison of words greater than 8 bits.

Key Features

  • s Typical propagation delay: 20 ns s Wide power supply range: 2.
  • 6V s Low quiescent current: 80 µA (74 Series) s Large output current: 4 mA (74 Series) s Same as HC521 Ordering Code: Order Number MM74HC688WM MM74HC688SJ MM74HC688MTC MM74HC688N Package Number M20B M20D MTC20 N20A Package.

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