TUSB8040ARKMR

Controllers Overview

The TUSB8040ARKMR is a second-generation SuperSpeed USB hub controller manufactured by Texas Instruments. It supports four downstream ports operating at data rates up to 5 Gb/s in compliance with USB 3.0 standards. The device utilizes a 100-WQFN package (9x9 mm) and operates on dual power supplies of 1.1 V and 3.3 V. It features an I2C/SMBus interface for configuration and management. The component functions within a temperature range of -40°C to +85°C and includes humidity sensitivity classification MSL 3.

Controllers Feature Summary

• Supports four downstream SuperSpeed USB ports with backward compatibility
• Configurable via I2C or SMBus interface for system integration
• Designed for low-power operation with standby current specifications

Controllers Applications

• Desktop and mobile computing systems requiring USB expansion
• Peripheral docking stations and hubs
• Industrial control panels with USB connectivity needs

Controllers Procurement Notes

Verify the specific suffix ARKMR against the official datasheet to confirm package dimensions and thermal characteristics. Confirm RoHS compliance status and moisture sensitivity level requirements before assembly. Check for end-of-life notifications as this component may be designated as not recommended for new designs.

Controllers Selection Notes

Select this model when a four-port SuperSpeed solution is required with I2C control capabilities. Ensure the design accommodates the 100-WQFN footprint and dual voltage rails. Compare against the TUSB8040A1RKMR variant if industrial temperature ranges are necessary, noting potential differences in operational specifications.

Controllers Part Context

This component belongs to the TUSB8040A series of USB hub controllers from Texas Instruments. It serves as a bridge between host processors and multiple USB peripherals, enabling high-speed data transfer. The part is distinct from the TUSB8041 series which offers different port configurations or feature sets.

Controllers Replacement Considerations

The TUSB8041RGCR is listed as a similar alternative. Verify pinout compatibility and functional equivalence before substitution. Other variants within the TUSB8040 family may offer different temperature ratings or packaging options.