MC74VHC157 Overview
MOTOROLA SEMICONDUCTOR TECHNICAL DATA Quad 2-Channel Multiplexer The MC74VHC157 is an advanced high speed CMOS quad 2 channel multiplexer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It consists of four 2 input digital multiplexers with mon select (S) and enable (E) inputs.