SN74LV138ATDBR

Overview

The SN74LV138ATDBR is a 3-line to 8-line decoder/demultiplexer from Texas Instruments' LV logic family. It operates within a supply voltage range of 2 V to 5.5 V and features TTL-voltage compatible inputs. The device supports partial-power down mode via Ioff functionality. It is housed in a 16-pin SSOP package and is rated for operation between -40°C and +125°C.

Feature Summary

• Supports partial-power down mode through Ioff circuitry
• Inputs are compatible with TTL voltage levels
• Wide operating supply voltage range from 2 V to 5.5 V

Applications

• Automotive electronic systems requiring low-voltage decoding
• Portable battery-powered equipment utilizing wide voltage tolerance
• Industrial control interfaces needing TTL compatibility

Procurement Notes

Verify the specific suffix 'DBR' confirms the SSOP-16 package and tape-and-reel shipping format. Confirm the 'A' designation aligns with automotive qualification requirements if applicable to your system design. Ensure input voltage levels match the specified TTL compatibility constraints during integration.

Selection Notes

Select this component when a 3-to-8 decoding function is required with broad voltage flexibility. The LV series offers lower power consumption compared to standard CMOS alternatives. Verify that the SSOP-16 footprint fits the PCB layout constraints and that the temperature range meets environmental specifications.

Part Context

This part belongs to the SN74LV138A series, which provides high-speed decoding capabilities. The LV family is designed for low-voltage applications while maintaining compatibility with higher voltage logic families. This specific variant focuses on robust performance across varying supply conditions.

Replacement Considerations

Check for SN74LV138ADBR as a potential equivalent with identical electrical characteristics but potentially different packaging or reel specifications. Verify pinout compatibility before substitution.