| 摘要 |
<p>PURPOSE:To eliminate the redundancy of delay, to quicken the system operation and to expand the operating margin of the system by optimizing a delay circuit with respect to the system. CONSTITUTION:A source of a p-channel transistor (hereinafter called p-Tr)Qp of a CMOS inverter being a component of a delay circuit is connected to a point of a semiconductor inside voltage drop level Vint and a substrate is connected to a point of an external power supply level Vext. Then, the delay circuit is formed by combining an inverter having the p-TrQp connected in this way and an inverter having the p-TrQp whose source and substrate are both connected to the point of the external power supply level Vext.</p> |
