| 摘要 |
According to one embodiment, a communication circuit includes a direct-current converter circuit (23a) configured to generate a second power supply potential different from a second reference potential by a predetermined potential, from a first power supply potential, a first receiving circuit (25a) configured to receive a binary communication signal, whose one level is at a first reference potential, through a first signal input terminal, by a differential transmission method, a first level shift circuit (241a) configured to convert the communication signal received by the first receiving circuit into a binary communication signal, whose one level is at the second reference potential, and the other level is at the second power supply potential, and a first transmission circuit (26a) configured to output the binary communication signal converted by the first level shift circuit, through a first signal output terminal, by a differential transmission method.
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