MM74HC688 Datasheet | Fairchild Semiconductor

MM74HC688 8-Bit Magnitude parator (Equality Detector) September 1983 Revised February 1999 MM74HC688 8-Bit Magnitude parator (Equality Detector) General Description The MM74HC688 equality detector utilizes advanced silicon-gate CMOS technology to pare 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 parison of words greater than 8 bits. This device is useful in memory block decoding applications, where memory block enable signals must be generated from puter address information. The parator’s output can...