| 摘要 |
PURPOSE:To reduce remarkably power consumption by dividing a CMOS circuit into a plurality of semiconductor region, making each of the semiconductor regions electrically independent, and connecting electric power sources in each semiconductor region in series for power supplying. CONSTITUTION:In CMOS circuit parts 1 and 2, many CMOS logic circuits composed of a P-channel MOS transistor M1 and an N-channel MOS transistor M2 are formed. Each of the CMOS circuit parts 1 and 2 is formed electrically independently with each other, whose electric power source inputs are connected in series, and a source voltage Vcc1 is supplied from the both ends of this series connection. Thus a source current i1 flows to the ground potential through the CMOS circuit parts 1 and 2. An interface (I/F) part 3 is driven directly by the original high source voltage Vcc1, and contains the functions of level-shift and level-conversion, which convert the output and input signal levels of each of the CMOS circuits 1 and 2 into the ordinary CMOS levels. The power consumption of CMOS circuits formed in a semiconductor integrated circuit device can be remarkably reduced, thereby. |
