INTERFACE CIRCUIT FOR TRANSMITTING AND RECEIVING SIGNALS BETWEEN ELECTRONIC DEVICES, AND SEMICONDUCTOR MEMORY CHIP AND OPERATION PROCESSING DEVICE INCLUDING THE SAME

An interface circuit configured to transmit and receive signals between electronic devices is provided. The interface circuit includes an optical connection protocol manager configured to serialize a parallel transmission packet electrical signal generated based on output data to generate a serialized transmission packet electrical signal, parallelize a serial reception packet electrical signal to generate a parallelized reception packet electrical signal, and parse the parallelized reception packet electrical signal according to whether there is an error in the parallelized reception packet electrical signal to generate input data; and an electro-optical converter configured to convert the serialized transmission packet electrical signal into a transmission packet optical signal to output the transmission packet optical signal, receive a reception packet optical signal, and convert the reception packet optical signal into the serial reception packet electrical signal to provide the serial reception packet electrical signal to the optical connection protocol manager.