SN74LV126APWRG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LV126APWRG4 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. Latch-up performance exceeds 250mA per JESD 17.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode voltage operation across all ports
• Enables live insertion and partial power down 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 the specific ordering suffix G4 indicates RoHS compliance and green manufacturing status as defined in the Package Option Addendum. Confirm the package type PW corresponds to TSSOP-14. Ensure the component status is Active rather than NRND or Obsolete before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for bus interface applications requiring output ringing minimization due to its low-drive CMOS characteristics. Verify that input voltages do not exceed 5.5V tolerance limits relative to VCC. Ensure unused inputs are tied to high or low bias to prevent undefined operational states during system operation.

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 buffers but is distinguished by its specific 3-state output configuration and 2V to 5.5V operating range. The G4 suffix denotes environmental compliance within the broader product line.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LV126APW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle power-down conditions?

The Ioff feature supports partial power down mode and back drive protection, allowing safe operation when the device is powered off while connected to active buses.

What is the recommended method to ensure high-impedance state during power up?

To ensure the high-impedance state during power up or power down, the OE pin should be tied to GND through a pulldown resistor, with the minimum value determined by the driver's current-sourcing capability.