| 摘要 |
PURPOSE:To realize a desirable logic without a decoding circuit by providing an AND plane which can obtain a desirable AND without decoding circuits which generates the forward and backward signal of an input signal and providing an OR plane which can obtain a desirable OR by inputting the output from the AND plane. CONSTITUTION:If an input signal 11 is L, a P channel transistor 14 is in an ON-state and a product term line 12 is L. At this time, an N channel transistor 15 is in an OFF-state and the product term line 13 is H. Meanwhile, if the input signal 11 is H, the N channel transistor 15 is in the ON-state and the product term line 13 is L. At this time the P channel transistor 14 is in the OFF-state and the product term line 12 is H. By combining the basic circuits, the AND plane which can realize the desirable AND can be constituted without an input decoder. |
