USB2503/

USB2503A

Integrated USB 2.0

Compatible 3-Port Hub

PRODUCT FEATURES

Datasheet

„Integrated USB 2.0 Compatible 3-Port Hub

—3 Transaction Translators for highest performance

—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:

—Single Serial I2C EEPROM

—SMBus Slave Port

„Default VID/PID/DID, allows functionality when configuration EEPROM is absent

„Hardware Strapping options allow for configuration 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 lead-free RoHS compliant package

SMSC USB2503/USB2503A

DATASHEET

Revision 2.3 (08-27-07)