Patent ID: 7449918

Claim:
A level shift circuit, comprising: a first inverter that functions as a level converting unit for convening a voltage level of an input signal VSIN; a second inverter that receives a signal obtained by inverting the voltage level of the input signal of the first inverter; and a voltage dropping circuit CONT 1 that drops down a voltage level of a first control signal CS 1 to a level capable of inverting the level of an output signal of the second inverter, wherein the first control signal CS 1 for controlling the operation of the second inverter is output from an output node no 1 of the first inverter, a second control signal CS 2 for controlling the operation of the first inverter is output from an output node no 2 of the second inverter and the second control signal CS 2 is connected directly to the first inverter without an intermediate circuit, and the first control signal CS 1 is supplied to the second inverter through the voltage dropping circuit CONT 1 .