| 摘要 |
PURPOSE:To perform high-speed operation without degrading driving ability, by excluding the influence of the internal resistance of a level shifting part from a normally on type FET. CONSTITUTION:The level shifting parts D1 and D2 of the output circuit of a front-stage logical circuit are detached and attached to the input circuit of a next-stage logical circuit, and then load capacitance CL1 such as wiring is driven directly by a buffer FETT2, so the driving ability is improved to perform the high-speed operation. In this case, the influence of the internal resistance of the level shifting circuit consisting of diodes D1 and D2 is exerted upon only the input capacitance of the next stage. |
