74HC157

The Texas Instruments 74HC157 is an active Quadruple 2-Line To 1-Line Data Selector/Multiplexer belonging to the HC technology family. This component functions as a digital multiplexer with a 2:1 configuration and supports four channels. It is designed for a wide operating voltage range from 2V to 6V, with a typical propagation delay of 11ns. The device consumes low power, with a maximum ICC of 80µA, and features a low input current of 1µA maximum. Its outputs can drive up to 15 LSTTL loads. The SNx4HC157 contains four data selectors/multiplexers, all controlled by the same address select (A/B) input and strobe (G) input. A high level at the strobe terminal forces all outputs low. It is available in various packages including SOP (NS), TSSOP (PW), SOIC (D), SSOP (DB), and PDIP (N).

This multiplexer is suitable for applications requiring selection between two data sources. The wide operating voltage range and robust output drive make it versatile for various digital logic designs. Its low power consumption is beneficial for battery-powered devices. The part operates across a temperature range of -40°C to 85°C.