74AC157PC

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74AC157PC is a quad 2-input multiplexer belonging to the AC logic series. It features four independent data selectors with common select and strobe inputs, packaged in a 16-lead Plastic Dual-In-Line (PDIP) format. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports through-hole mounting. Key electrical specifications include a propagation delay of 8.5 ns and an operating temperature range from -55°C to +125°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Contains four independent 2-to-1 line data selectors sharing common control inputs
• Provides true output signals for selected data channels
• Includes a strobe input to enable or disable output states

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital systems
• Address decoding circuits
• Bus-oriented transmitter/receiver configurations

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor, noting that Texas Instruments holds the original intellectual property rights for this logic family. Confirm the PDIP-16 package style and AC logic series classification match system requirements. Ensure compliance with RoHS directives if applicable to the specific production batch. Validate the extended industrial temperature rating against environmental constraints.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when high-speed data selection is required with wide voltage tolerance. The AC series offers superior speed compared to standard LS logic while maintaining CMOS power efficiency. Verify that the 16-pin DIP footprint aligns with existing PCB layouts. Consider the extended temperature range for harsh environments where standard commercial grade devices may fail.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC157 family of quad multiplexers. It shares functional compatibility with other 74-series logic families but utilizes advanced silicon-gate CMOS technology. The device serves as a fundamental building block for complex digital switching applications requiring multiple parallel data paths.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Equivalent parts include MM74AC157N and CD74AC157E. Verify pinout compatibility before substitution. Check if alternative manufacturers offer identical electrical characteristics and package dimensions.