SMSC USB2503A - Manual

SMSC USB2503/USB2503A
DATASHEET
Revision 2.3 (08-27-07)
Datasheet PRODUCT FEATURES
USB2503/
USB2503A
Integrated USB 2.0
Compatible 3-Port Hub
„ 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 I 2 C 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