After having analyzed the theory of the calculator circuit thoroughly , the author made use of the characteristic of the calendar circuit and put forward a new design method , namely replacing the static circuit with the dynamic circuit to reduce the area of whole chip . now the author has finished the design of the calendar circuit and accomplished the layout design with the full - custom method 本文作者在透彻分析计算器原理的基础上，利用万年历电路的工作频率的特点，提出了以cmos动态门代替静态触发器的设计方法，独立设计出万年历部分电路，将其与计算器部分电路紧密融合，构成一块完整的数字大规模集成电路，并以全定制的方法实现了整个芯片的版图设计。
Shenzhen doing electronic co . , ltd . is a professional manufacturer of collecting premium gift sets , house hold electronic products and some of our oem developed goods . our main products are electronic novelties as following : multi function of calendar , calculator calendar , mini telephone , radio calendar etc . the beautiful and protect products win a lot of users 深圳市东英电子有限公司是集礼品家用电子产品的研制开发生产销售为一体的多元化企业，主要产品有多功能台历计算器万年历迷你电话万年历收音机系列等设计新颖美观实用的产品。
Xiamen city lucky to rise electronic science technologies co . , ltd . one electron scientific and technological enterprise that incorporate developing , producing , selling into an organic whole ; develop the production paper money machine , tie financial machines and bank office supplies , etc . , such as paper money machine , interphone , electronic display screen , perpetual calendar , etc . mainly 厦门市吉腾电子科技有限公司是一家集开发、生产、销售为一体的电子科技企业；主要开发生产点钞机、捆钞机、对讲机、电子显示屏、万年历等金融机具及银行办公用品等等。
