实时时钟电路（X1228）被用作里程表，数据存储器和车速表中的警报。
A real-time clock circuit(X1228)is applied to be an hourmeter, data memorizer and alarm in speedometer.
本控制系统以高性能8位单片机at89c52为核心，结合数据采集电路、信号输出电路、实时时钟电路、系统监控电路组成。
The control system is composed of AT89C52, a high-powered 8-bit microcontroller, data gathering circuit, real time circuit, data output circuit and system watch circuit.
利用AT 89s51单片机及实时时钟集成电路ds1643，设计了一个电子钟系统，实现了日期、时间显示及报时功能。
Use AT89S51 single chip and real-time clock integrated circuit DS1643, designed an electronic clock system, realized the date, time display and reported time.
在工业控制、检测及生产管理中，这是一种非常实用的实时时钟集成电路。
This is a very practical integrated circuit of the real-time clock in the industrial control, detection and management of production.
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。
A real time clock module maintains operating and timing parameters in "non-volatile" or persistent memory when an integrated circuit is powered down.
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。
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.
该电度表的控制电路主要由信号检测、实时时钟、输出控制电路及68hc 705c8单片机组成。
The control circuit of the Kilowatt-hour meter consists mainly of the circuit of signal detection, real-time clock and control of output, and it also consists of 68hc705c8 single chip computer.
文中讨论了一些与实时时钟晶振选择以及电路设计相关的问题。
And the questions about oscillator circuit-design criteria and system design are provided as well.
文中讨论了一些与实时时钟晶振选择以及电路设计相关的问题。
And the questions about oscillator circuit-design criteria and system design are provided as well.
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