SN74LV126ADBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LV126ADBR is a quadruple bus buffer gate with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 5.5V and features independent line drivers. The device supports mixed-mode voltage operation, allowing inputs to accept voltages up to 5.5V regardless of the VCC level. It includes Ioff circuitry for live insertion and partial power down protection. The component is housed in a 14-pin SSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode voltage operation on all ports
• Ioff functionality enables live insertion and back drive protection
• Provides independent line drivers with 3-state outputs

Buffers, Drivers, Receivers, Transceivers Applications

• Servers
• Network switches
• Electronic point of sales systems
• Set-top boxes

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DBR' corresponds to the SSOP-14 package and tape-and-reel carrier configuration. Confirm RoHS compliance status and lead finish details against the latest manufacturer documentation. Ensure design compatibility with the specified operating temperature range and thermal requirements before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing bus interfaces requiring voltage translation from 5.5V tolerant inputs to lower voltage domains. The low-drive CMOS technology minimizes output ringing, making it suitable for applications where signal integrity is critical. Verify that the required propagation delay characteristics align with system timing constraints across the intended operating voltage range.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LV126A family of quadruple bus buffer gates. It shares functional similarities with other LV series logic devices but is distinguished by its specific 3-state output configuration and wide voltage tolerance. The DBR suffix indicates the surface-mount SSOP packaging variant designed for automated assembly processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LV126ADR (SOIC Package)

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial power down mode?

The integrated Ioff circuitry prevents current flow through the inputs or outputs when the device is powered down, supporting safe live insertion and back drive protection.

What is the input voltage tolerance relative to VCC?

The inputs are 5.5V tolerant at any valid VCC, allowing the device to translate signals down from 5.5V logic levels even when operating at lower supply voltages.