| 摘要 |
A voltage level conversion circuit is provided with a level converter for converting a VDD 1 system input signal into a VDD 2 system signal, and a NOT circuit for inverting the level-converted input signal and outputting the inverted signal, and the outputs of VDD 1 system NOT circuits constituting the level converter are input to only high breakdown voltage transistors in the level converter while a signal having a logical voltage level corresponding to the low power supply voltage VDD 2 is input to low breakdown voltage transistors, and further, only the input signal level-converted by the level converter is input to the NOT circuit.
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