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1·Real time clock with internal RAM.

内部RAM的实时时钟。

2·The real time clock works stablely and accurately by a long time experiments.

经过长期的试验．实时时钟运行稳定准确，取得了良好的效果。

3·The real time clock module provides is divided into an analog and a digital domain.

实时时钟模块提供的是分为模拟和数字域名。

4·The power manager unit and the nodes sleep period are controlled by an RTC(real time clock) chip.

实时时钟模块是典型的字符设备也是工业控制系统中的重要组成部分。

5·It is helpful to the designer of serial interface communication program of the real time clock device.

该方法对于实时时钟器件串行接口通信程序的设计具有一定的借鉴作用。

6·The battery is used for data back-up in the event of a power failure as mentioned above, and continuous operation of a real time clock.

这个电池的作用是，在发生电源故障前，进行实时数据备份和连续操作。

7·A real time clock module maintains operating and timing parameters in non-volatile or persistent memory when an integrated circuit is powered down.

实时时钟模块的维护工作和时间“非易失性”，或当一个永久的记忆集成电路关机参数。

8·This article introduce the principle, the character, the function and the application of real time clock ISL1208 and then gives the hardware and software design.

简要介绍了实时时钟isl 1208的原理、特点、功能及应用，并给出了与单片机的硬件连接图及控制程序。

9·Based on real time clock of GPS system, and by means of absolute time-marker, real time data acquisition between different sites was performed in the form of wireless.

以GPS系统实时时钟为基础，通过对绝对时标加以处理，以无线方式实现了不同站点之间的实时数据采集。

10·The paper introduces the function, the feature, the principle and the application of hige accuracy real time clock chip RTC4553, it gives hardware and software design.

介绍了高精度实时时钟芯片rtc 4553的功能、特点、原理及应用，并给出了电路原理图和控制程序。