TUSB544IRNQR

Overview

The TUSB544IRNQR is a USB Type-C multi-protocol line A redriver manufactured by Texas Instruments. It supports data rates up to 8.1 Gb/s and complies with the USB 3.1 standard for Super Speed transmission. The device operates on a single 3.3 V power supply, with a valid voltage range of 3 V to 3.6 V. It is housed in a WQFN-40 surface-mount package and functions within an industrial temperature range from -40°C to +85°C. Configuration is managed via an I2C interface.

Feature Summary

• Supports USB Type-C multi-protocol operation for Line A signaling
• Provides signal integrity enhancement through high-speed redriver technology
• Enables flexible configuration and control via I2C interface

Applications

• USB Type-C host and device port implementations
• High-speed peripheral connectivity solutions
• Data center and server backplane interconnects

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when sourcing. Confirm the 'I' designation corresponds to the industrial temperature grade (-40°C to +85°C). Ensure compatibility with the required WQFN-40 footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any updates to pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component for designs requiring USB 3.1 Super Speed signal regeneration over lossy channels. The WQFN-40 package offers a compact solution for space-constrained applications. Verify that the system design accommodates the 3.3 V operating voltage and I2C control requirements. Consider the thermal performance within the specified industrial temperature range for reliable operation.

Part Context

This part belongs to the TUSB544 series of USB Type-C redrivers. It is designed to extend the reach of high-speed USB signals by compensating for channel losses. The series includes variants with different packaging options such as cut tape (T) or reel (R), allowing flexibility in manufacturing processes while maintaining identical core functionality.

Replacement Considerations

The TUSB544RNQR is a functional equivalent differing primarily in packaging format. Verify that the change from reel to cut tape does not impact assembly equipment settings. No other direct substitutes are confirmed in public documentation.