SN74LVTH126PW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH126PW is a quadruple bus buffer with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 3.6 V and supports mixed-mode signal operation, allowing 5-V input and output voltages while powered by 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. The component provides Ioff and power-up 3-state support for hot-insertion applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V tolerant inputs and outputs during 3.3-V VCC operation
• 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 functionality to prevent damaging current backflow and driver conflicts during hot insertion

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal environments requiring interface between 5-V systems and 3.3-V components
• Hot-insertion applications utilizing Ioff and power-up 3-state capabilities
• Bus buffering in unregulated battery operation scenarios down to 2.7 V

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'PW' corresponds to the TSSOP package configuration required for your design. Confirm that the RoHS compliance status and lead finish match your assembly specifications. Ensure the operating temperature range of -40°C to 85°C aligns with your environmental requirements. Cross-reference the manufacturer part number against official distributor catalogs to confirm current production status and availability.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits that require quadruple bus buffering with 3-state control in a low-voltage environment. It is suitable for applications needing TTL interface compatibility with 5-V systems while operating at 3.3 V. Consider its active bus-hold feature if minimizing external passive components is a priority. Verify that the TSSOP package dimensions fit your PCB layout constraints and thermal management needs.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVTH126 family of bus buffers produced by Texas Instruments. It is part of the LVTH logic series designed for low-voltage ABT operations. The PW suffix indicates the TSSOP package variant, which is available in tube packaging. Other variants in the family include SOIC, SSOP, and TVSOP packages, offering flexibility for different mounting and density requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH126D

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused or undriven inputs?

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

What is the function of the OE input?

When the associated output-enable (OE) input is low, the corresponding output enters a high-impedance state. When OE is high, the buffer drives the output based on the A input.