电子计算机的发展与数字逻辑集成电路有着密切的联系,在设计一台大型高速电子计算机时,需要考虑的一个问题就是选择采用何种型式的数字逻辑集成电路。随着半导体技术和工艺的飞速发展,各种不同形式的数字逻辑集成电路不断涌现。但是,对于大型高速电子计算机来说,可以采用的数字逻辑集成电路目前主要有二种:一种是射极耦合逻辑电路(ECL),另一种是采用肖脱基二极管钳位的晶体管—晶体管逻辑电路(S—TTL),这二种线路在使用 The development of electronic computers is closely linked with digital logic integrated circuits. One of the issues to consider when designing a large-scale high-speed electronic computer is to choose which type of digital logic ICs to use. With the rapid development of semiconductor technology and process, various forms of digital logic integrated circuits are emerging. However, there are currently two types of digital logic ICs that can be used in large high-speed electronic computers: one is an emitter-coupled logic (ECL) and the other is a Schottky diode-shunt transistor Logic circuit (S-TTL), these two kinds of circuit are in use