先进的CMOS逻辑电路74AC是在当前超大规模电路的先进工艺技术基础上发展起来的新一代高速CMOS逻辑电路系列,其目的是想代替第三代双极型TTL——先进的低功耗肖特基电路74ALS系列。因为它具有传统CMOS电路的低功耗和高抗干扰能力,又兼备ALSTTL的高速和强负载能力。这一系列电路在国际上尚无先例,是由中国科学院上海冶金研究所和上海无线电十九厂协作研制成功的。第一批四种电路(74AC00双输入器与非 The advanced CMOS logic 74AC is a new generation of high-speed CMOS logic circuits developed on the basis of the advanced process technology of today’s ultra-large-scale circuits. The aim is to replace the third generation bipolar TTL, the advanced low-power Schottky Base circuit 74ALS series. Because of its low power consumption and high noise immunity of traditional CMOS circuits, it combines the high speed and high load capability of ALSTTL. This series of circuits is unprecedented in the world, and was successfully developed by the Shanghai Institute of Metallurgy, Chinese Academy of Sciences and Shanghai Radio Nineteen Factory. The first four circuits (74AC00 dual input and non