| 摘要 |
<p>An enhancement-mode field effect transistor (ENFET) logic circuit providing greater fan-out capability. The logic circuit employs a conventional common-source inverter section (19), but additionally incorporates a current-driving section (25) which drives the common-source inverter section. A current-driven inverter logic circuit is realized by employing a second ENFET transistor (23) to drive the gate of the common-source inverter section (19). A current-driven (NOR) gate is realized by employing to ENFET transistors in parallel which drive the common-source inverter section. Also a current-driven NAND gate is realized by utilizing a single transistor having two gate inputs to drive the common-source inverter section. The use of sweep-out circuitry allows for control of the operational speed of the device. The logic circuit designes have high fanout capability compared to the common-source inverter circuit alone.</p> |
