（1）熟悉集成电路的引脚安排。（2）掌握各芯片的逻辑功能及使用方法。（3）了解面包板结构及其接线方法。（4）了解数字电子钟的组成及工作原理。（5）熟悉数字电子钟的设计与制作。 -(1) be familiar IC pin arrangement. (2) to acquire all the chip logic functions and methods of use. (3) understand the bread board structure and wiring methods. (4) understand the digital electronic clock composition and working principle. (5) are familiar with digital electronic clock design and production.