SN74LVC138DBR

Overview

The SN74LVC138DBR is a low-voltage CMOS 3-to-8 line decoder/demultiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 3.6V and features three binary address inputs and eight active-low outputs. The device utilizes a 16-pin SSOP surface-mount package, designed for automotive-grade reliability with an operating temperature range from -40°C to +85°C. It supports high-speed data transmission and includes multiple enable inputs for system expansion.

Feature Summary

• Provides decoding or demultiplexing functions using three binary address lines to select one of eight active-low outputs.
• Operates reliably across a wide supply voltage range of 2V to 3.6V, suitable for low-power applications.
• Features multiple enable inputs that allow the device to be expanded in hierarchical systems without additional logic gates.

Applications

• Automotive electronic control units requiring robust signal routing
• Industrial equipment needing reliable data distribution
• Consumer electronics utilizing low-voltage logic interfaces

Procurement Notes

Verify the specific suffix 'DBR' corresponds to the 16-pin SSOP tape-and-reel packaging configuration. Confirm compliance with RoHS directives and REACH regulations as specified in the manufacturer's documentation. Ensure the procurement channel provides valid traceability for automotive-grade components.

Selection Notes

Select this component when a low-voltage 3-to-8 decoder is required in a space-constrained design. The SSOP package offers a compact footprint compared to larger through-hole options. Consider the 2V to 3.6V operating range to ensure compatibility with the target system's power supply rails.

Part Context

This part belongs to the SN74LVC138A family of decoders and demultiplexers. It shares functional similarities with other members of the series but differs in package type and specific manufacturing revisions. The LVC designation indicates Low-Voltage CMOS technology, optimizing performance for modern low-power digital circuits.

Replacement Considerations

Check for direct equivalents such as the SN74LVC138ADBR or SN74LVC138APWR if pinout compatibility is maintained. Verify that any substitute maintains the same voltage range and package dimensions to fit existing board layouts.