TUSB8040RKMR

Controllers Overview

The TUSB8040RKMR is a USB hub controller from Texas Instruments, part of the TUSB8040A series. It supports USB 3.0 SuperSpeed standards with data rates up to 5 Gb/s. The device features four downstream ports and utilizes a 100-WQFN package (9x9 mm). Operating voltages include 1.1 V and 3.3 V. The component operates within a temperature range of -40°C to +85°C. It interfaces via I2C/SMBus. The status is listed as Not Recommended for New Designs (NRND).

Controllers Feature Summary

• Supports USB 3.0 SuperSpeed connectivity with four downstream ports.
• Integrates I2C and SMBus interface capabilities for host control.
• Designed for surface-mount installation in compact form factors.

Controllers Applications

• Desktop computer systems requiring USB expansion.
• All-in-one PCs and thin clients.
• Industrial automation controllers with USB peripheral needs.

Controllers Procurement Notes

Verify the specific suffix 'RKMR' against official Texas Instruments documentation to confirm package type and temperature grade. Confirm current lifecycle status, as similar variants are marked NRND. Ensure compatibility with existing PCB footprints for the 100-WQFN package before procurement.

Controllers Selection Notes

Compare against the TUSB8041RGCR for alternative packaging options if the 100-WQFN is unsuitable. Verify that the 1.1 V and 3.3 V power requirements align with the system design. Check for newer generations if long-term supply assurance is critical due to NRND status.

Controllers Part Context

This component belongs to the TUSB8040 family of USB 3.0 hub controllers. It is functionally related to the TUSB8040ARKMT and TUSB8040A1RKMR. These devices serve as high-performance hubs for connecting multiple USB peripherals to a host controller.

Controllers Replacement Considerations

TUSB8041RGCR is listed as a similar replacement option by distributors. Verify pinout and electrical parameter compatibility before substitution.