The RTS5441-GRT is a USB 3.0 hub controller manufactured by Realtek. This chip provides a cost-effective solution for adding multiple USB 3.0 ports to a computer system or embedded device. It complies with the USB 3.0 specification and supports SuperSpeed data transfer rates up to 5 Gbps. This hub controller is often used in laptops, desktops, docking stations, and other devices that require multiple USB ports.

Applications:

• Laptops and Notebooks
• Desktop Computers
• Docking Stations
• USB Hubs
• Embedded Systems

Features:

• Compliant with USB 3.0 Specification Revision 1.0
• Supports SuperSpeed (5 Gbps), High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) data rates
• Four Downstream Ports
• Integrated USB 2.0 Transceiver
• Power Management Features for Energy Saving
• Over-Current Protection for each Downstream Port
• Supports Battery Charging Specification Revision 1.2 (BC 1.2)

Benefits:

• Fast Data Transfer: USB 3.0 SuperSpeed allows for rapid data transfer between devices.
• Multiple USB Ports: Expands the number of available USB ports on a system.
• Backward Compatibility: Supports older USB standards, ensuring compatibility with a wide range of devices.
• Power Efficiency: Power management features minimize energy consumption.
• Protection: Over-current protection safeguards connected devices from damage.
• Battery Charging: Supports battery charging functionality for mobile devices.

Additional Details:

The RTS5441-GRT operates with a 3.3V power supply. It is typically packaged in a QFN (Quad Flat No-leads) package. This hub controller requires an external crystal oscillator for clock generation, usually at 25 MHz. It supports both individual and gang power switching modes for the downstream ports. The RTS5441-GRT incorporates an internal regulator to generate the necessary voltage for the USB transceivers. Proper PCB layout is essential for signal integrity and optimal performance, particularly for the USB 3.0 signals. The chip supports various USB device classes, including mass storage devices, input devices, and communication devices. The RTS5441-GRT also includes features for handling USB device enumeration and configuration. It can be configured to operate in either bus-powered or self-powered mode, depending on the application requirements. The RTS5441-GRT is a reliable and cost-effective solution for adding USB 3.0 connectivity to various devices. Its integrated features and compliance with industry standards make it a popular choice for USB hub applications. The support for Battery Charging Specification Revision 1.2 enables faster charging of mobile devices connected to the USB ports.