USB 3.1 hub controller with I²C/SMBus management interface
The Texas Instruments TUSB8044ARGCR is a USB 3.1 hub controller that expands a single upstream USB port into multiple downstream ports. It communicates over I²C and SMBus for configuration and status monitoring, and complies with the USB 3.1 standard for SuperSpeed data rates. Typical applications include desktop and notebook PCs, docking stations, monitors with integrated hubs, and consumer electronics requiring downstream port expansion in a commercial-temperature environment.
Supply rails and power-tree planning
The TUSB8044ARGCR requires two supply rails: a core voltage between 0.99 V and 1.26 V, and an I/O voltage between 3 V and 3.6 V.