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USB2503 Datasheet

  • USB2503

  • Integrated USB2.0 Compatible 3-Port Hub

  • 43頁

  • SMSC   SMSC

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USB2503/
USB2503A
Integrated USB 2.0
Compatible 3-Port Hub
PRODUCT FEATURES
Integrated USB 2.0 Compatible 3-Port Hub
鈥?3 Transaction Translators for highest performance
鈥?High-Speed (480Mbits/s), Full-Speed (12Mbits/s) and
Low-Speed (1.5Mbits/s) compatible
鈥?Full power management with per port or ganged
,
selectable power control
鈥?Detects Bus-Power/Self-Power source and changes
mode automatically
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
Complete USB Specification 2.0 Compatibility
鈥?Includes USB 2.0 Transceivers
VID/PID/DID, and Port Configuration for Hub via:
鈥?Single Serial I
2
C EEPROM
鈥?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
SMSC USB2503/USB2503A
DATASHEET
Revision 2.1 (12-06-06)

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