Connector connected to capacitor for blocking abnormal voltage and electronic device having same

An electronic device, comprising:

• a processor;
• a universal serial bus (USB) connector including a transmission pin that electrically connects a reception pin of an external electronic device to a data transmission terminal of the processor, and a reception pin that electrically connects a transmission pin of the external electronic device to a data reception terminal of the processor;
• a first receiver capacitor that blocks power from the reception pin of the USB connector;
• and
• a first transmitter capacitor that blocks power from the transmission pin of the USB connector,
• wherein the processor is configured to detect whether the external electronic device is connected or disconnected based on a time constant determined by the first transmitter capacitor, a second receiver capacitor connected to the reception pin of the external electronic device, and a resistor connected to the reception pin of the external electronic device and to a ground of the external electronic device.

An electronic device, comprising:

• a processor;
• a universal serial bus (USB) connector including a reception pin that electrically connects a transmission pin of an external electronic device to a data reception terminal of the processor;
• and
• a first capacitor electrically connected to the reception pin and to the processor in order to block power from the reception pin of the USB connector.