LogicThe GL3224-ONY04 is a ROHS (Restriction of Hazardous Substances Compliant) USB IC manufactured by Genesys Logic in a QFN-48-EP(7x7) package. It is a Low Speed/Full Speed USB device controller, providing 3 downstream ports with support for all USB 2.0 transfer types, including Bulk, Control, Interrupt, and Isochronous. It is suitable for use in external hubs, USB discs, card readers, and other USB peripherals. The device provides reset/suspend/resume operations, power management support, and support for legacy USB 1.1 applications. It is compatible with various operating systems including Windows, Mac OS, and Linux.