SN74F157AD

Overview

The SN74F157AD is a quad 2-input data selector/multiplexer from the Texas Instruments 74F series. It operates on a single power supply ranging from 4.5 V to 5.5 V. The device features four independent multiplexers, each selecting one of two data inputs based on a common select line. Packaged in a 16-pin SOIC format for surface mount installation, it supports an operating temperature range of 0°C to 70°C. Key electrical characteristics include a propagation delay and output drive capabilities suitable for standard digital logic applications.

Feature Summary

• Contains four independent 2-to-1 multiplexers with a common selection control.

Applications

• Data routing in digital logic circuits
• Signal selection in microprocessor systems

Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm package type and temperature rating. Ensure the component meets RoHS3 compliance requirements if applicable to your design. Confirm the 16-SOIC footprint matches your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when high-speed switching within the 74F family is required at 5V logic levels. Compare propagation delays against other 74-series families like LVC or AHC if lower voltage operation or reduced power consumption is necessary for the target application environment.

Part Context

This part belongs to the standard 74F (Fast) logic family, known for higher speed performance compared to basic 74LS devices. It serves as a fundamental building block for managing multiple data sources in synchronous digital designs requiring reliable signal path selection.

Replacement Considerations

SN74F157ADR is a tape-and-reel variant of the same functional device. SN74F157ADRG4 is a lead-free version with identical specifications. Verify pin compatibility and thermal ratings when substituting.