FEATURES
 Low power consumption
□ 155 mA when seven downstream facing
ports enabled in High-Speed mode;
□ 66 mA when one downstream facing
port enabled in High-Speed mode;
 Fully compliant with Universal Serial Bus
Specification Revision 2.0 (USB 2.0);
□ Upstream facing port supports HighSpeed (480MHz) and Full-Speed
(12MHz) modes;
□ 7 downstream facing ports support
High-Speed (480MHz), Full-Speed
(12MHz), and Low-Speed (1.5MHz)
modes;
 Integrated USB 2.0 Transceivers;
 Integrated upstream 1.5KΩ pull-up,
downstream 15KΩ pull-down, and serial
resisters;
 Integrated 5V to 3.3V and 1.8V regulator.
 Integrated Power-On-Reset circuit;
 Integrated 12MHz Oscillator with feedback
resister and crystal load capacitor;
 Integrated 12MHz-to-480MHz Phase Lock
Loop (PLL);
 Multiple Transaction Translator (MTT) –
□ One TT for each downstream port;
□ Alternate Interface 0 for Single-TT, and
Alternate Interface 1 for Multiple-TT;
□ Each TT could handle 64 periodic
Start-Split transactions, 32 periodic
Complete-Split transactions, and 6
none-periodic transactions;
 Support Self-Powered Mode only;
 Board configured options –
□ Ganged or Individual Power Control
Mode select;
□ Global, Multiple Ganges, or Individual
Over-Current Protection Mode select;
□ Removable or Non-Removable
Downstream Devices configuration;
□ Number of Downstream Ports;
 EEPROM configured options –
□ Vendor ID, Product ID, & Device
Release Number;
□ Removable or Non-Removable
Downstream Devices configuration;
□ Serial Number; and
□ Number of Downstream Ports;
 Comprehensive status indicators support:
□ Standard downstream port status
indicators (Green and Amber LED
control for each downstream port);
□ Hub Active/Suspend indicator LED.