| 摘要 |
PURPOSE:To perform high-speed operation through simple circuit constitution by providing three pairs of transistors (TR) which perform switching operation, three two-phase signal sources, and a resistance for leading a signal out. CONSTITUTION:Two-phase output signals (a)-(f) of signal sources 1-3 are inputted to an OR operation circuit 40. When the highrer potential of each two- phase signal is 1 and the lower potential is 0, the output signal 1 of the OR operation circuit 40 is 1 and an output signal (k) is 0 when a TR27 is on and a TR26 is off, when the TR27 is off, a TR25 is on, and a TR24 is off, or when the TRs 27, 25, and 22 are off and the TR26, 24, and 23 are on. Consequently, the logical operation circuit is composed of a small number of TRs and the high- speed operation is performed. |
