SN74LS157ML1

Overview

The SN74LS157ML1 is a quad 2-input multiplexer manufactured by onsemi using Low Power Schottky (LSTTL) technology. It features four independent data selectors sharing common select and enable inputs to route 4-bit words from two sources to buffered outputs in true form. The device operates at a standard supply voltage of 5 V with an operating temperature range up to 70 °C. It utilizes a 16-lead Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Schottky barrier diode process for high-speed operation
• Non-inverting buffered outputs presenting selected data
• Input clamp diodes limit high-speed termination effects
• Special circuitry ensures glitch-free multiplexing

Applications

• Data selection and routing in digital systems
• Generation of specific logic functions of two variables
• Bus switching applications

Procurement Notes

Verify the manufacturer marking matches onsemi specifications. Confirm the SOIC-16 package dimensions align with JEDEC MS-012 standards. Ensure the device meets the required LSTTL electrical characteristics for your specific application environment.

Selection Notes

Select this component when high-speed switching within TTL families is required. It serves as a direct functional replacement for other LS157 variants, provided the package type and thermal constraints are compatible with the design layout.

Part Context

This part belongs to the 74LS157 family of quadruple 2-line to 1-line data selectors. It is fabricated using the Schottky process to ensure compatibility with all Motorola TTL families while providing enhanced speed and power dissipation characteristics compared to standard LS logic.

Replacement Considerations

Compatible substitutes include SN74LS157N, DM74LS157N, and MC74LS157. Verify that alternative packages maintain the same pinout and electrical performance.