SN74LVTH125PWRE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH125PWRE4 is a quadruple bus buffer with 3-state outputs designed for low-voltage (3.3-V) VCC operation, supporting mixed-mode signal environments with 5-V input and output voltages. It operates within a supply voltage range of 2.7 V to 3.6 V and an ambient temperature range of -40°C to 85°C. The device features independent line drivers with propagation delays ranging from 1 ns to 5.9 ns at VCC = 3.3 V. It includes active bus-hold circuitry on data inputs, Ioff support for hot insertion, and power-up 3-state functionality.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation by interfacing 5-V systems with 3.3-V VCC environments
• Features active bus-hold circuitry on data inputs to maintain valid logic states without external resistors
• Provides Ioff and power-up 3-state capabilities to prevent damaging current backflow during hot insertion

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal buffering between 5-V and 3.3-V system components
• Hot-insertion applications requiring controlled power-up and power-down states
• Unregulated battery operation down to 2.7 V

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'E4' against Texas Instruments documentation to confirm lead-free status and RoHS compliance details. Ensure the TSSOP-14 package variant matches the required PCB footprint and thermal management specifications for the target application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits that require bidirectional or unidirectional buffering between 5-V logic levels and 3.3-V powered subsystems. The inclusion of bus-hold inputs simplifies design by eliminating the need for external pullup or pulldown resistors on unused or undriven lines.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH125 family of quadruple bus buffers manufactured by Texas Instruments. It utilizes BiCMOS technology to achieve high-speed performance while maintaining low power consumption. The PW suffix indicates a Plastic Small Outline (TSSOP) package with 14 pins.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH125PWRG4

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused inputs?

The SN74LVTH125PWRE4 features active bus-hold circuitry that holds unused or undriven data inputs at a valid logic state, removing the necessity for external pullup or pulldown resistors.

What is the function of the Ioff circuitry?

The Ioff circuitry disables the outputs when the device is powered down, preventing damaging current backflow through the device into the power supply rails.