SN74AHCT157DR

Signal Switches, Multiplexers, Decoders Overview

The SN74AHCT157DR is a quadruple 2-input data selector/multiplexer manufactured by Texas Instruments. It features four independent channels, each capable of selecting one of two data inputs (A or B) based on the state of the select input. The device operates with a supply voltage range of 4.5V to 5.5V and utilizes HCT logic levels for compatibility with TTL-driven systems. Outputs are controlled by an output enable input that functions independently of the selection process.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides four independent 2-to-1 multiplexing channels
• Compatible with standard TTL logic input levels
• Features tri-state outputs controlled by a dedicated enable pin

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital systems
• Signal selection in measurement equipment
• Bus switching applications

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'D' indicates the SOIC-16 package type when sourcing. Confirm the 'HCT' designation ensures compatibility with 5V TTL logic families. Check for automotive qualification variants if operating in harsh environments. Ensure the manufacturer source is authorized to guarantee component authenticity and traceability.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when interfacing 5V logic systems requiring multiple independent signal paths. The HCT technology ensures robust noise immunity and direct compatibility with older TTL standards. Consider the SOIC-16 package for surface-mount assembly constraints. Evaluate power consumption requirements against other logic families like LVC or AHC if lower voltage operation is needed.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN74AHCT series of high-speed CMOS logic devices. It serves as a fundamental building block for digital signal processing and control circuits. The device is widely used in industrial and consumer electronics where reliable data switching at 5V logic levels is required.