SN74LV126ADR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LV126ADR 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 supports mixed-mode voltage operation on all ports. The device features independent line drivers where each output is disabled when the associated output-enable (OE) input is low. It provides a maximum propagation delay of 6.5ns at 5V and includes Ioff support for live insertion, partial power down mode, and back drive protection.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode voltage operation across all ports
• Enables live insertion and partial power down functionality via Ioff
• Provides independent line drivers with 3-state outputs

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the component matches the SN74LV126A family specifications before integration. Confirm the package type corresponds to the SOIC-14 designation indicated by the 'D' suffix in the part number. Ensure compatibility with the required operating temperature range of -40°C to 125°C. Check for RoHS compliance status if environmental regulations apply to the specific manufacturing batch.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring bus buffering with 3-state control and mixed-voltage interface capabilities. It is suitable for designs needing live insertion support and protection against back driving. Consider the wide operating voltage range from 2V to 5.5V when interfacing with various logic families. Evaluate the propagation delay characteristics relative to system timing requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LV126A series of quadruple bus buffer gates. It is designed for low-drive CMOS applications where output ringing is a concern due to its slow edge rates. The inputs are 5.5V tolerant at any valid VCC, making it effective for translating signals down to lower voltage domains. It utilizes standard digital logic interfaces with active-high enable controls.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LV126ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial power down modes?

The device supports partial power down modes through its Ioff feature, which prevents current flow from the outputs when the device is powered down.

What is the function of the OE input pin?

The Output Enable (OE) input controls the state of the buffers. When OE is low, the respective output is disabled and enters a high-impedance state. When OE is high, the gate passes data from the A input to the Y output.