SN74ALS158D

Overview

The SN74ALS158D is a quad 1-of-2 data selector/multiplexer from the Texas Instruments ALS logic family. It features four independent multiplexers in a single package, providing efficient signal routing capabilities. The device operates within a supply voltage range of 4.5 V to 5.5 V and exhibits a propagation delay of 14 ns. Designed for surface-mount applications, it utilizes an SOIC-Narrow-16 package. The component supports a commercial operating temperature range from 0°C to +70°C, ensuring reliable performance in standard electronic environments.

Feature Summary

• Integrates four independent 1-of-2 data selectors within a single integrated circuit package
• Delivers high-speed signal selection with a propagation delay characteristic of the ALS logic family
• Supports surface-mount technology via a narrow small-outline integrated circuit package

Applications

• Digital signal routing in data processing systems
• Data selection circuits requiring multiple independent channels
• Multiplexing applications in industrial control equipment

Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape/reel configuration, as variations exist within the product line. Confirm RoHS compliance status through official documentation prior to integration. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when multiple independent 2-to-1 data paths are required in a compact form factor. The ALS series offers a balance of speed and power consumption suitable for general-purpose digital logic. Consider the SOIC-Narrow-16 footprint during PCB layout planning to ensure adequate clearance and thermal management for surface-mount assembly processes.

Part Context

This part belongs to the SN74ALS158 series of multiplexers manufactured by Texas Instruments. It is part of the Advanced Low-power Schottky (ALS) logic family, known for improved speed over standard TTL while maintaining lower power dissipation. The device serves as a fundamental building block for complex digital systems requiring flexible data path configuration.

Replacement Considerations

SN74ALS158N: Pin-compatible DIP alternative offering identical logical functionality in a through-hole package for prototyping or legacy board upgrades.