SN74LVC138ADBR

Overview

The SN74LVC138ADBR 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 a propagation delay of 6.7 ns. The device utilizes a 16-pin SSOP package and supports surface-mount installation. It functions across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides decoding and demultiplexing capabilities for digital signal routing
• Operates with low-voltage power supplies suitable for portable applications
• Includes active-low and active-high enable inputs for precise control

Applications

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

Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SSOP-16 package and tape-and-reel packaging configuration. Confirm RoHS compliance status and ensure the component meets the required industrial temperature specifications for your target environment before finalizing procurement orders.

Selection Notes

Select this component when a compact 16-pin surface-mount solution is required for 3-to-8 line decoding. Ensure the design accommodates the 1.65 V to 3.6 V operating range and verify that the SSOP footprint matches the PCB layout constraints.

Part Context

This part belongs to the SN74LVC138A series, designed for low-voltage CMOS applications. It serves as a standard logic interface for converting binary codes into one-of-eight active-low outputs, commonly used in microcontroller-based systems for peripheral selection.

Replacement Considerations

Compatible alternatives include the SN74LVC138APWR (TSSOP-16) and SN74LVC138ADRE4 (SOIC-16). Verify pin compatibility and package dimensions before substitution.