SN74ALS158DRG4

Overview

The SN74ALS158DRG4 is a quad 2-line to 1-line data selector multiplexer manufactured by Texas Instruments. It belongs to the SN74ALS logic family, utilizing Advanced Low-Power Schottky technology for high-speed operation with reduced power consumption. The device features four independent multiplexers, each capable of selecting one of two data inputs based on an address line and an enable input. Packaged in a 16-pin Small Outline Integrated Circuit (SOIC), it operates within a supply voltage range of 4.5 V to 5.5 V. The component supports surface-mount installation and is designed for applications requiring efficient data routing in digital systems.

Feature Summary

• Integrates four independent 2-to-1 multiplexers for parallel data selection
• Utilizes Advanced Low-Power Schottky technology for optimized speed and power efficiency
• Includes active-low enable inputs to control data flow across all channels

Applications

• Data routing in digital communication systems
• Address decoding and bus switching applications
• General-purpose logic circuits requiring multiple signal selectors

Procurement Notes

Verify the specific suffix DRG4 against the manufacturer's current datasheet to confirm package dimensions and pinout compatibility. Ensure that the Advanced Low-Power Schottky logic level requirements align with the target system's voltage thresholds. Confirm RoHS compliance status through official documentation prior to integration into regulated assemblies.

Selection Notes

Select this component when designing systems that require multiple independent data paths with low propagation delay. The ALS series offers a balance between speed and power dissipation suitable for moderate-density logic designs. Consider the SOIC-16 package constraints regarding PCB space and thermal management capabilities during the layout phase.

Part Context

This part is part of the broader SN74ALS series of logic integrated circuits produced by Texas Instruments. The SN74ALS158 specifically addresses the need for compact, high-speed multiplexing solutions in legacy and modern digital architectures. It serves as a functional equivalent to other quad multiplexers within the industry-standard 74xx logic families, providing reliable signal selection capabilities.

Replacement Considerations

Cross-reference with SN74ALS158N or SN74ALS158NSR for alternative packaging options such as DIP or wider SOIC variants. Verify electrical characteristics and pin configurations before substituting with generic 74ALS158 equivalents from other manufacturers.