| 摘要 |
PROBLEM TO BE SOLVED: To reduce current consumption. SOLUTION: The potential generation circuit is provided with operational amplifiers OP1-OP3, a PMOS transistor(TR) PT1 and an NMOS TR NT1. When the potential of a terminal OUT1 is dropped, the amplifier OP2 supplies an L level signal to the TR PT1, which is turned on. Thereby a current is supplied from a power supply node VDD to the terminal OUT1. When the potential of the terminal OUT1 is raised, the amplifier OP3 supplies an H level signal to the TR NT1, which is turned on. Thereby a current is led from the terminal OUT1 into a ground node GND.
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