USB2503/USB2503A Integrated USB 2.0 Compatible 3-Port Hub Highlights Integrated USB 2.0 Compatible 3-Port Hub - 3 Transaction Translators for highest perfor- mance - High-Speed (480Mbits/s), Full-Speed (12Mbits/s) and Low-Speed (1.5Mbits/s) compatible - Full power management with per port or ganged, selectable power control - Detects Bus-Power/Self-Power source and changes mode automatically Complete USB Specification 2.0 Compatibility - Includes USB 2.0 Transceivers VID/PID/DID, and Port Configuration for Hub via: 2 - Single Serial I C EEPROM - SMBus Slave Port Default VID/PID/DID, allows functionality when configuration EEPROM is absent Hardware Strapping options allow for configura- tion without an external EEPROM or SMBus Host On-Board 24MHz Crystal Driver Circuit or 24 MHz external clock driver Internal PLL for 480MHz USB 2.0 Sampling Internal 1.8V Linear Voltage Regulator Integrated USB termination and Pull-up/Pull-down resistors Internal Short Circuit protection of USB differential signal pins 1.8 Volt Low Power Core Operation 3.3 Volt I/O with 5V Input Tolerance 48-Pin QFN RoHS compliant package 2007 - 2016 Microchip Technology Inc. DS000002249A-page 1USB2503/USB2503A TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: