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USB2503 Datasheet, PDF (1/43 Pages) SMSC Corporation – Integrated USB2.0 Compatible 3-Port Hub | |||
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USB2503/
USB2503A
Integrated USB 2.0
Compatible 3-Port Hub
PRODUCT FEATURES
 Integrated USB 2.0 Compatible 3-Port Hub
â 3 Transaction Translators for highest performance
â High-Speed (480Mbits/s), Full-Speed (12Mbits/s) and
Low-Speed (1.5Mbits/s) compatible
â Full power management with per port or ganged,
selectable power control
â Detects Bus-Power/Self-Power source and changes
mode automatically
 Complete USB Specification 2.0 Compatibility
â Includes USB 2.0 Transceivers
 VID/PID/DID, and Port Configuration for Hub via:
â Single Serial I2C EEPROM
â 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
Datasheet
 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 2.1 (12-06-06)
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