TITUSB2077APTR
Overview
The TUSB2077APTR is a 7-port full-speed USB 2.0 hub controller designed to provide a low-power, single-chip solution for expanding USB connectivity. It integrates USB transceivers and supports both bus-powered and self-powered modes while operating on a 3.3V supply. The device is highly flexible, offering per-port or ganged power switching and overcurrent reporting to simplify power management in complex peripheral designs.
Why Choose This Part
The TUSB2077APTR reduces BOM costs by integrating the 3.3V logic and transceivers into a single 48-LQFP package while eliminating the need for external pull-up resistors on PWRON pins. Its support for external EEPROMs allows engineers to easily customize Vendor IDs and Product IDs for branded hardware. Additionally, the inclusion of dedicated LED indicator outputs simplifies the implementation of visual status monitoring for port power and hub configuration.
Applications
Key Specifications
Getting Started
Designers can start by referencing the TUSB2077A evaluation module (EVM) to verify the 6-MHz or 48-MHz clocking configurations. For custom configurations, interface a standard serial EEPROM to the hub to load specific VID/PID data. Ensure the 3.3V supply is stable and that the OVRCUR pins are correctly pulled high or low based on the chosen power management topology.
