SN74S157N

Signal Switches, Multiplexers, Decoders Overview

The SN74S157N is a Schottky TTL quad 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments. It integrates four independent multiplexers within a single 16-pin DIP package. The device selects one of two data inputs for each channel based on a common select line, routing the chosen signal to the corresponding output. Designed for high-speed digital applications, it operates with a standard 5V supply and features low propagation delay characteristics typical of the Schottky logic family.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates four independent 2-input multiplexers in a single package
• Utilizes Schottky TTL technology for high-speed switching performance
• Features a common select input to control all four channels simultaneously

Signal Switches, Multiplexers, Decoders Applications

• Digital signal routing and switching systems
• Data selection circuits in computer peripherals
• High-speed logic interface modules

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific manufacturer source, as Texas Instruments has transferred certain legacy 74S series assets to other entities like Microchip or Nexperia. Confirm that the component matches the original TI specifications if strict compatibility is required. Check RoHS compliance status as older Schottky TTL parts may not meet current environmental standards without specific suffixes.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when high-speed switching is required in a 5V Schottky TTL environment. It serves as a direct functional replacement for other quad 2-to-1 multiplexers in legacy designs. Consider power consumption and thermal dissipation requirements inherent to Schottky logic compared to lower-power alternatives like LVC or AHC families.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the classic 74S (Schottky) logic family, known for superior speed over standard 74LS devices. It is a legacy component often found in vintage computing hardware and industrial control systems. While largely superseded by modern CMOS technologies, it remains relevant for maintaining compatibility with existing Schottky-based circuit architectures.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct pin-compatible substitutes include the SN74S157 from other manufacturers such as Nexperia or Microchip. Ensure voltage levels and drive strengths match the original design constraints when cross-referencing datasheets.