SN74LVC138APWR

Overview

The SN74LVC138APWR is a 3-to-8 line decoder and demultiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 3.6 V and features three address inputs and eight active-low outputs. The device utilizes a TSSOP-16 surface-mount package and supports a propagation delay of 6.7 ns. It functions across an industrial temperature range from -40°C to +125°C, ensuring reliable performance in various electronic applications requiring precise signal decoding.

Feature Summary

• Provides 3-to-8 line decoding functionality with active-low outputs for efficient signal routing
• Operates on a single power supply ranging from 2 V to 3.6 V for low-voltage compatibility
• Includes two active-low and one active-high enable inputs for flexible control logic integration

Applications

• Address decoding in embedded systems
• Data distribution in communication interfaces
• Memory chip selection circuits

Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-16 reel packaging configuration when sourcing. Confirm that the component meets RoHS compliance standards required for your manufacturing process. Ensure the operating environment stays within the specified -40°C to +125°C temperature limits to maintain guaranteed electrical characteristics and device longevity.

Selection Notes

Select this component when a low-voltage 3-to-8 decoder is required with high-speed performance. The LVC series offers improved switching speeds compared to older logic families while maintaining compatibility with standard CMOS levels. Consider the TSSOP-16 package for space-constrained designs requiring surface-mount assembly capabilities.

Part Context

This part belongs to the SN74LVC138A family of decoders and demultiplexers. It is designed for use in portable and battery-operated applications due to its wide voltage range and low power consumption. The device serves as a fundamental building block for digital logic systems requiring address decoding or data path selection.

Replacement Considerations

SN74LVC138APWRE4 is a verified equivalent variant with identical electrical specifications and pinout configuration.