SN74LVC138ADGVR

Overview

The SN74LVC138ADGVR is a 3-line to 8-line decoder and demultiplexer from the Texas Instruments LVC logic family. It operates within a supply voltage range of 1.65 V to 3.6 V and features three binary address inputs and eight active-low outputs. The device includes two active-low enable inputs and one active-high enable input for chip selection control. It is housed in a 16-pin TSSOP package with a narrow body, designed for surface-mount applications. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides decoding and demultiplexing functions via three binary address lines controlling eight active-low outputs.
• Incorporates multiple enable inputs, including two active-low and one active-high, to manage device activation states.
• Operates across a wide low-voltage power supply range suitable for modern portable and battery-powered systems.

Applications

• Address decoding in embedded microcontroller systems
• Demultiplexing data streams in communication interfaces
• Memory chip select generation in storage architectures

Procurement Notes

Verify the specific suffix 'DGVR' corresponds to the TSSOP-16 narrow package variant when sourcing. Confirm RoHS compliance status and lead times directly with authorized distributors or Texas Instruments, as these details are subject to change based on manufacturing availability and regional supply chain conditions.

Selection Notes

Select this component when low-voltage operation between 1.65 V and 3.6 V is required. Ensure the design accommodates the TSSOP-16 package dimensions and thermal characteristics. Verify that the logic levels of the driving signals are compatible with the LVC family input thresholds for reliable switching performance.

Part Context

This part belongs to the SN74LVC138A series of decoders and demultiplexers manufactured by Texas Instruments. The LVC family is characterized by its compatibility with both 3.3 V and 2.5 V logic systems while maintaining low power consumption. The 'D' indicates the SOIC/TSSOP package type, and 'GVR' specifies the tape and reel packaging configuration for automated assembly.

Replacement Considerations

Compatible alternatives include the SN74LVC138APWR and SN74LVC138ADR, which offer similar functional specifications but may differ in package style or shipping quantity. Cross-reference datasheets to ensure pinout compatibility and electrical parameter alignment before substitution.