SN74LV126APW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LV126APW 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 for each channel. The device supports mixed-mode voltage operation, allowing inputs to accept voltages up to 5.5V regardless of the VCC level. It includes Ioff support for live insertion and partial power down modes. The component is housed in a 14-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides four independent non-inverting buffer gates with 3-state outputs controlled by individual OE pins.
• Supports mixed-mode voltage operation on all ports, enabling down-voltage translation from 5.5V tolerant inputs.
• Features Ioff circuitry to prevent excessive current draw during live insertion or partial power down conditions.

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 the specific ordering suffix against the manufacturer's latest Package Option Addendum to confirm production status and material compliance. The 'PW' designation indicates a TSSOP-14 package. Confirm RoHS status and moisture sensitivity level ratings prior to assembly planning. Ensure the selected variant matches the required lead finish and reel specifications for surface-mount placement processes.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing bus interfaces requiring low-drive CMOS characteristics to minimize output ringing and overshoot. It is suitable for applications where balanced output drive and slow edge rates are preferred to reduce electromagnetic interference. Verify that the load capacitance and transition rates remain within the specified limits for the chosen operating voltage to ensure signal integrity.

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 logic series devices but is distinguished by its specific voltage tolerance and 3-state control architecture. The PW suffix identifies the physical TSSOP packaging format used for surface-mount technology integration.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LV126APWR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle high-impedance states during power transitions?

To ensure the high-impedance state during power-up or power-down, the Output Enable (OE) pin should be tied to GND through a pulldown resistor. The minimum resistor value is determined by the current-sourcing capability of the driver.

What is the input voltage tolerance of the SN74LV126APW?

The inputs are 5.5V tolerant at any valid VCC, making the device suitable for translating signals down to lower voltage domains while accepting 5.5V inputs.