SN74LVC138ANSR

Overview

The SN74LVC138ANSR 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 three address inputs and eight active-low outputs. The device includes two active-low enable inputs and one active-high enable input for power-down control. Packaged in an SOIC-16 surface-mount format, it supports a maximum propagation delay of 6.7 ns and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Provides decoding and demultiplexing capabilities with three binary address lines controlling eight distinct output channels.
• Incorporates dedicated enable pins to manage chip activation and facilitate low-power standby modes.
• Utilizes advanced CMOS technology to ensure high noise immunity and stable operation at low supply voltages.

Applications

• Address decoding in embedded systems and microcontroller interfaces
• Data routing and signal distribution in digital communication circuits
• Memory addressing schemes in consumer electronics and industrial equipment

Procurement Notes

Verify the specific suffix 'ANSR' against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperatures and voltage levels before integration. Cross-reference datasheet revisions to validate pinout consistency and electrical characteristics for your specific design constraints.

Selection Notes

Select this component when designing low-voltage digital systems requiring efficient address decoding or data multiplexing. The LVC series offers superior performance compared to legacy logic families while maintaining compatibility with standard interface requirements. Consider the SOIC-16 package dimensions for PCB layout optimization and thermal management needs.

Part Context

This part belongs to the SN74LVC138A family of decoders and demultiplexers manufactured by Texas Instruments. The LVC series is designed for applications demanding low power consumption and high speed. Variants within this family differ primarily in packaging options and environmental ratings, serving diverse electronic industry sectors.

Replacement Considerations

Compatible substitutes include SN74LVC138ADBR and SN74LVC138APWR. Verify pin compatibility and electrical parameters before substitution.