SN74LVTH126DR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH126DR is a quadruple bus buffer with 3-state outputs manufactured by Texas Instruments. It operates on a single power supply ranging from 2.7 V to 3.6 V and supports mixed-mode signal operation, allowing 5-V input and output voltages while powered at 3.3 V. The device features independent line drivers where each output enters a high-impedance state when the associated output-enable (OE) input is low. It includes active bus-hold circuitry on data inputs to maintain valid logic states without external resistors.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation for interfacing 5-V systems with 3.3-V environments
• Features active bus-hold circuitry on data inputs to eliminate the need for external pullup or pulldown resistors
• Provides Ioff and power-up 3-state support to enable safe hot-insertion applications
• Includes latch-up protection exceeding specified JESD standards

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal operation between 5-V and 3.3-V system environments
• Hot-insertion applications utilizing Ioff and power-up 3-state capabilities
• Unregulated battery operation down to 2.7 V

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and tape-and-reel specifications against the manufacturer's latest documentation before ordering. Confirm that the operating temperature range of -40°C to 85°C aligns with your system requirements. Ensure proper handling procedures are followed due to the CMOS technology used in this component.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring isolation between 5-V and 3.3-V domains. The LVTH series is suitable for applications needing robust bus holding and mixed-voltage tolerance. Consider the SOIC-14 package dimensions and thermal characteristics during PCB layout planning.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH126 family of quadruple bus buffers. It is designed specifically for low-voltage 3.3-V VCC operation while providing TTL interface compatibility. The 'DR' suffix indicates it is packaged in an SOIC-14 format and supplied in a tape-and-reel configuration for automated assembly processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH126D

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused inputs?

The device features active bus-hold circuitry on its data inputs, which holds unused or undriven inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.

What is the function of the OE pin?

Each output enters a high-impedance state when the associated output-enable (OE) input is low, effectively disabling the driver.