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MM74HC688

Fairchild
Part Number MM74HC688
Manufacturer Fairchild
Description 8-Bit Magnitude Comparator (Equality Detector)
Published May 9, 2005
Detailed Description MM74HC688 8-Bit Magnitude Comparator (Equality Detector) September 1983 Revised February 1999 MM74HC688 8-Bit Magnitud...
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MM74HC688
MM74HC688

Overview
MM74HC688 8-Bit Magnitude Comparator (Equality Detector) September 1983 Revised February 1999 MM74HC688 8-Bit Magnitude Comparator (Equality Detector) 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.
This device is useful in memory block decoding applications, where memory block enable signals must be generated from computer address information.
The comparator’s output can dri...


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