| 摘要 |
The Schmitt circuit includes a first logic circuit that receives an output signal of the input logic circuit and has a first threshold voltage. The Schmitt circuit includes a second logic circuit that receives the output signal of the input logic circuit and has a second threshold voltage lower than the first threshold voltage. The Schmitt circuit includes a variable resistance circuit that adjusts the threshold voltage of the input logic circuit in accordance with an output signal of the first logic circuit and an output signal of the second logic circuit. The Schmitt circuit includes a third logic circuit that receives the output signal of the first logic circuit and the output signal of the second logic circuit, outputs a floating potential in the case where a potential of an input signal of the third logic circuit is between the first threshold voltage and the second threshold voltage, and outputs a fixed potential in the case where the potential of the input signal of the third logic circuit is equal to or exceeds the first threshold voltage or is equal to or below the second threshold voltage. |
