The paper introduces three functions of the integrated circuit of real-time calendar clock and the interconnection method with single chip computer. The interfacing circuit is also given.
本文具体介绍了三种实时日历时钟集成电路的功能以及与单片机的连接方法，给出了接口电路。
A set of method and formula for the computation of calendar first D check, calendar time since overhaul and total calendar life is presented by using tests data.
建立了一套由试验数据估算日历首翻期、日历翻修间隔、日历总寿命的方法和公式 ；提出了由使用中真实的腐蚀损伤数据来估算日历首翻期的方法 ；
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