SN74AUC126RGYR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AUC126RGYR is a quadruple bus buffer gate with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 0.8 V to 2.7 V and is optimized for 1.8-V operation while remaining 3.6-V I/O tolerant. The device features four independent line drivers, each controlled by an output-enable (OE) input. Key electrical characteristics include a maximum propagation delay of 2.1 ns at 1.8 V, ±8-mA output drive capability, and a maximum quiescent current of 10 μA. It supports partial-power-down mode via Ioff circuitry and provides ESD protection exceeding 2000 V per the human-body model.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Optimized for 1.8-V operation with 3.6-V I/O tolerance to support mixed-mode signal environments
• Includes Ioff circuitry to disable outputs and prevent damaging backflow during partial-power-down scenarios
• Provides high electrostatic discharge protection exceeding specified JESD standards for human-body, machine, and charged-device models

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal level translation between low-voltage logic and 3.6-V interfaces
• Partial-power-down applications requiring safe isolation when the device is unpowered
• High-speed data buffering in portable and battery-powered electronic systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix RGYR corresponds to the VQFN-14 package with tape-and-reel packaging containing 3000 units. Confirm that the moisture sensitivity level is rated as Level-2 and that the part marking matches MS126. Ensure compatibility with the -40°C to +85°C operating temperature range required for your application environment before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring low-voltage operation down to 0.8 V combined with 3.6-V I/O tolerance. It is suitable for applications demanding sub-nanosecond propagation delays and low power consumption. Consider the VQFN-14 package constraints regarding thermal impedance and PCB layout guidelines provided in the datasheet. Verify that the 3-state output control logic aligns with your system's bus management requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AUC series of advanced ultra-low voltage CMOS logic products from Texas Instruments. It functions as a quadruple bus buffer gate, distinct from flip-flops or inverters within the same family. The RG Y package designation indicates a plastic quad flatpack no-lead configuration with a 3.5 x 3.5 mm footprint and 0.5 mm pitch.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.