Patent ID: 6373315
Filing Date: 2002-04-16
Classification: H03K

Abstract:
A signal potential conversion circuit converting a first signal having one level of a first potential and the other level of a reference potential into a second signal having one level of a second potential different from said first potential and the other level of said reference potential, comprising:first and second output nodes for outputting said second signal and a complementary signal of the second signal respectively; a discharge circuit discharging said first output node to said reference potential in response to change of said first signal from said first potential to said reference potential and discharging said second output node to said reference potential in response to change of said first signal from said reference potential to said first potential; a charge circuit including first and second transistors of a first conductivity type having respective first electrodes both connected to a line of said second potential, respective second electrodes connected to said first and second output nodes respectively and respective input electrodes connected to said second and first output nodes respectively, and charging to said second potential one of said first and second output nodes having a potential higher than that of the other output node; a third transistor of the first conductivity type connected between the line of said second potential and said second output node; and a first control circuit turning on said third transistor in a pulse manner in response to change of said first signal from said first potential to said reference potential.