SN74LV8T139MPWREP

Overview

The SN74LV8T139MPWREP is a single 2-to-4 line decoder/demultiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 1.65 V to 5.5 V and supports both CMOS and TTL input logic levels. The device features three address inputs and one enable input, providing four active-low outputs. It is housed in a TSSOP-16 package and is designed for surface-mount installation. The component functions as a low-voltage translation device suitable for mixed-signal systems requiring level shifting between different voltage domains.

Feature Summary

• Provides decoding functionality from two address lines to four distinct output channels
• Supports bidirectional voltage translation between 1.65 V and 5.5 V domains
• Includes an active-low enable input to control data propagation to outputs

Applications

• Address decoding in embedded microcontroller systems
• Voltage level translation between low-voltage logic and higher-voltage peripherals
• Signal routing in mixed-signal circuit designs

Procurement Notes

Verify the specific suffix 'MPWREP' against the official Texas Instruments datasheet to confirm military-grade or enhanced reliability specifications. Ensure the ordering part number matches the exact package type and pin configuration required for your PCB layout. Cross-reference with the manufacturer's latest documentation to validate RoHS compliance status and any recent product change notifications affecting this specific variant.

Selection Notes

Select this component when a compact solution is needed for translating signals between disparate voltage levels while maintaining decoding capabilities. It is appropriate for designs requiring operation across a wide voltage range without external level-shifting circuits. Consider the TSSOP-16 package constraints and thermal requirements during the initial schematic capture phase to ensure compatibility with the target assembly process.

Part Context

This part belongs to the SN74LV8T series of low-voltage translation devices from Texas Instruments. These components are engineered to facilitate communication between digital blocks operating at different supply voltages. The series typically includes decoders, transceivers, and buffers designed for high-density applications where space efficiency and reliable signal integrity are critical design parameters.

Replacement Considerations

Consult the Texas Instruments cross-reference tool for verified equivalent parts. Potential substitutes may include other SN74LV8T series variants or compatible decoders from alternative manufacturers, provided they match the electrical characteristics and pinout configuration.