Is disposed between the upstream portion and the downstream portion of the integrated circuit , the isolation barrier to provide a galvanic isolation between them , the upstream portion of the integrated circuit , between the upstream USB devices , the USB2.0 die and first USB2.0 interface configured to send and receive compliant signal , and the downstream portion of the integrated circuit , between the downstream USB devices , configured to transmit and receive signals conforming to USB2.0 and 2 USB2.0 interface , and a plurality of signal coupling component that is configured to enable communication between the upstream portion and the downstream portion of the integrated circuit , USB2.0 protocol while maintaining galvanic isolation a plurality of signal coupling components upstream USB device and downstream USB device is configured to be able to communicate with each other using the upstream and downstream portions of the integrated circuit , upstream or downstream USB devices each has a module that is configured to automatically detect the USB2.0 speed , in response to the detection of multiple USB2.0 speed modes for communication between the upstream side or downstream USB devices the corresponding one to automatically place the integrated circuit , multiple USB2.0 speed mode , USB low-speed mode , USB full speed mode , USB isolator integrated circuit that includes a USB2.0 high-speed mode .
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