SN74LVC138ADT

Overview

The SN74LVC138ADT is a 3-line to 8-line decoder and demultiplexer from Texas Instruments, belonging to the LVC logic family. It operates within a supply voltage range of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V. The device provides a maximum propagation delay of 5.8 ns at 3.3 V. It is housed in a 16-SOIC package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Operates from 1.65 V to 3.6 V
• Inputs accept voltages to 5.5 V
• Max tpd of 5.8 ns at 3.3 V

Applications

• Address decoding
• Memory chip select
• Control signal routing

Procurement Notes

Verify the specific suffix 'DT' corresponds to the 16-SOIC package and industrial temperature range (-40°C to +85°C) as documented in the official datasheet. Confirm RoHS compliance status through the manufacturer's current documentation before procurement.

Selection Notes

Select this component for low-voltage digital systems requiring fast switching speeds. Ensure input signals do not exceed the 5.5 V tolerance limit when interfacing with higher voltage logic levels. Verify power supply stability within the 1.65 V to 3.6 V range for optimal performance.

Part Context

This part is part of the SN74LVC138A series, designed for high-speed CMOS operations. It serves as a standard solution for converting binary codes into active-high or active-low outputs in embedded systems and consumer electronics.

Replacement Considerations

Compatible substitutes include SN74LVC138ADRE4 and SN74LVC138APWR, provided pinout and electrical specifications match the design requirements.