74LVQ138SC

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74LVQ138SC is a low-voltage CMOS decoder/demultiplexer belonging to the LVQ logic series. It features one input line and eight output lines, packaged in a 16-pin SOIC format. The device operates within a supply voltage range of 2 V to 3.6 V and supports surface mount installation. It functions as a single circuit capable of decoding or demultiplexing signals across an operating temperature range from -40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides one-of-eight decode or demultiplexing functionality using low-voltage CMOS technology
• Integrates three enable inputs to simplify system expansion and data routing without external gates
• Features fully buffered inputs that present only one normalized load to the driving circuit

Signal Switches, Multiplexers, Decoders Applications

• High-performance memory decoding systems
• Data transmission and routing applications
• Demultiplexing signal distribution circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm RoHS compliance status and check for specific process change notifications regarding packaging or origin. Ensure the part number matches the exact suffix requirements for your application environment. Review datasheet specifications for any updates affecting electrical characteristics or pin configurations before integration.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when low power consumption and high-speed operation are required within a 2V to 3.6V supply range. The LVQ series offers improved performance over standard LV logic while maintaining compatibility with existing designs. Consider the 16-SOIC package dimensions for PCB layout constraints. Verify that the three enable inputs align with your system's control logic requirements for cascading or data reception.

Signal Switches, Multiplexers, Decoders Part Context

This device is part of the broader 74LVQ family of low-voltage logic integrated circuits manufactured by Fairchild Semiconductor. The LVQ series is designed to bridge the gap between standard LV and higher-speed logic families, offering enhanced switching speeds at lower voltages. Similar parts in the series include decoders, encoders, and multiplexers sharing the same electrical characteristics and package options.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes may include equivalent 3-to-8 line decoders from other manufacturers such as onsemi (e.g., 74ACT138 variants) or NXP, provided they match the LVQ electrical specifications and SOIC-16 package. Verify pinout compatibility and ensure the replacement supports the required 2V to 3.6V operating voltage range.