LOGIC CIRCUIT CAPABLE OF LEVEL SHIFTING

摘要

PURPOSE: A logic circuit for performing a level shifting operation is provided to perform the level shifting operation in a logic gate block with respect to a power voltage by including p-type metal oxide semiconductor transistors and inverters connected with the logic gate block. CONSTITUTION: A logic gate block(320) outputs a first signal by receiving an input signal. The logic gate block includes a complementary metal oxide semiconductor logic gate inverters(321, 322). Inverters(310, 330) output a second signal by receiving the first signal. A switching circuit transmits the power voltage of the logic gate block with either of a first power voltage(VDDP) or a second power voltage(VDDC) in response with the first signal and the second signal. The voltage levels of the first power voltage and the second power voltage are different.