usb hub 集成电路μPD720114的有关资料，包括结构框图、工作参数、工作电路图等

• Compliant with Universal Serial Bus Specification Revision 2.0 (Data Rate 1.5/12/480 Mbps) • High-speed or full-speed packet protocol sequencer for Endpoint 0/1 • 4 (Max.) downstream facing ports • Low power consumption (10 μA when hub in idle sta