An electronic circuit that includes a plurality of first drivers coupled in parallel, the first drivers each including transistors coupled in series and transmitting data at a predetermined communication speed, and a second driver that includes transistors coupled in series and transmitting data at a communication speed lower than the communication speed of the first driver. The number of first drivers operating in parallel is sufficient for output impedance of the first drivers to meet a predetermined standard through application of an electrical potential to bodies of the transistors of the first drivers. The electrical potential causes an output level of the second driver to meet a predetermined standard.