MM74HC688 Datasheet - Fairchild

MM74HC688 8-Bit Magnitude Comparator (Equality Detector)

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 .

MM74HC688 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 Desc

MM74HC688_FairchildSemiconductor.pdf