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74688

Part Number	74688
Manufacturer	National Semiconductor
Description	8-Bit Magnitude Comparator
Published	May 11, 2015
Detailed Description	MM54HCT688 MM74HCT688 8-Bit Magnitude Comparator (Equality Detector) February 1988 MM54HCT688 MM74HCT688 8-Bit Magnitu...
Datasheet	74688 PDF File

Overview

MM54HCT688 MM74HCT688 8-Bit Magnitude Comparator (Equality Detector) February 1988 MM54HCT688 MM74HCT688 8-Bit Magnitude Comparator (Equality Detector) General Description This equality detector utilizes advanced silicon-gate CMOS technology to compare bit for bit two 8-bit words and indicate whether or not they are equal The PeQ 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 combines the low power consumption of CMOS but inputs are compatible with TTL logic levels and the output can drive 10 low power Schottky equivalent loads MM54HCT MM74HCT devices are intended to interface between TTL and NMOS components and standard CMOS devices These parts are also plug in replacements for LSTTL devices and c...

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