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MAX6900 RTC与8051位控制器的连接

MAX6900 RTC与8051位控制器的连接

摘要:本应用笔记提供了MAX6900 RTC与8051位控制器的硬件连接和软件例程。 说明本应用笔迹介绍了MAX6900 I²C兼容RTC (实时时钟)与8051微控制器(µC)之间的连...

2009-04-21 标签:控制器 279

DS1390/DS1391 RTC与Motorola SPI

DS1390/DS1391 RTC与Motorola SPI

摘要:本应用笔记说明了DS1390与内置SPI™接口的Motorola DSP的连接方式,该电路使用了Motorola DSP56F800DEMO开发板和CodeWarrior IDE。 说明DS1390实时时钟(RTC)可以通过S...

2009-04-21 标签:接口 746

I²C串行实时时钟与微控制器的接口

I²C串行实时时钟与微控制器的接口

摘要:本应用笔记提供了Dallas I²C接口实时时钟的通用硬件配置和软件例程。本例程适用于采用BCD码时间和日期格式的RTC。 ...

2009-04-21 标签:微控制器串行 1181

用DS1340-33替代ST M41T00

用DS1340-33替代ST M41T00

摘要:DS1340-33串行实时时钟(RTC)提供了引脚兼容、功能上(包括软件时钟校准功能)等同于ST Microelectronics M41T00的时钟/日历,包括软件时钟校准功能。可直接用作替代产品,不需...

2009-04-21 标签:DS1340-33 663

利用DS1340的校准功能

利用DS1340的校准功能

摘要:DS1340串行接口实时时钟(RTC)提供软件时钟校准功能,为系统提供晶振与温度变化补偿。本应用笔记主要描述了如何利用这个功能改善计时精度。 寄存器映射...

2009-04-21 标签:DS1340 822

DS1307接口的与8051兼容微控制器-Interfaci

DS1307接口的与8051兼容微控制器-Interfaci

Abstract: This application note provides information on how to interface a DS1307 real-time clock (RTC) to a microcontroller and provides some example code for accessing the part. IntroductionThe DS1307 Serial ...

2009-04-21 标签:微控制器接口 627

使用DS32kHz达拉斯实时时钟-Using the DS3

Abstract: This application note describes how to reduce current consumption when using the DS32kHz with Dallas Real-Time Clocks (RTCs). OverviewThis application note is intended to answer some frequently asked ...

2009-04-21 标签:实时时钟 556

评估马克西姆实时钟表的准确性-Evaluating the

评估马克西姆实时钟表的准确性-Evaluating the

Abstract: This appnote describes methods for measuring the accuracy of the Maxim Real-Time Clocks (RTCs) using available accurate time sources and the Maxim evaluation kits. Evaluating the accuracy of Maxim real-time cloc...

2009-04-21 标签:Real-Time 488

利用实时时钟马克西姆与3线接口-Using Maxim RT

利用实时时钟马克西姆与3线接口-Using Maxim RT

Abstract: This appnote explains how to communicate with the MAX6901 real-time clock (RTC) over a 3-wire interface. The Maxim RTC (real-time clock) product family contains many parts that use a 3-wire serial interface for ...

2009-04-21 标签:接口实时时钟 606

解读实时时钟寄存器-Interpreting Real-Ti

解读实时时钟寄存器-Interpreting Real-Ti

Abstract: This application note describes the format used for Maxim Real-Time Clock (RTC) time and date registers. Maxim RTCs (real-time clocks) provide both current clock and calendar information to the end user. Many of...

2009-04-21 标签:寄存器 440

实时时钟的选择与优化-Real-Time-Clock Sel

实时时钟的选择与优化-Real-Time-Clock Sel

Abstract: This application note describes real-time clock (RTC) and crystal selection criteria and proper layout techniques for connecting a 32kHz crystal to a RTC. Following these guidelines will prevent time errors and incorrect time due...

2009-04-21 标签:实时时钟 2067

考虑马克西姆实时时钟晶体的选择-Considerations

考虑马克西姆实时时钟晶体的选择-Considerations

Abstract: This application note describes crystal selection criteria and proper layout techniques for connecting a 32kHz crystal to a real-time clock (RTC). Following these guidelines will prevent time errors and incorrect time due to cros...

2009-04-21 标签:晶体实时时钟 394

Crystal Considerations with Da

Crystal Considerations with Da

Abstract: This application note describes crystal selection and layout techniques for connecting a 32,768Hz crystal to a real-time clock (RTC). It also provides information about oscillator circuit-design criteria, system design, and manuf...

2009-04-21 标签:Real-Time 494

Replacement for the MC146818A

Abstract: This application note explains the hardware and software differences between the Motorola MC146818A and the Dallas DS12885 Real-Time Clocks (RTCs). OverviewThe Motorola MC146818A is no longer in produ...

2009-04-21 标签:MC146818A 230

Replacement for the MC146818

Abstract: This application note explains the hardware and software differences between the Motorola MC146818 and the Dallas DS12885 Real-Time Clocks (RTCs). OverviewThe Motorola MC146818 is no longer in product...

2009-04-21 标签:MC146818 269

Using the Dallas Phantom Real-

Using the Dallas Phantom Real-

Abstract: This application note describes how to interface a Phantom Real-Time Clock (RTC) in a microcontroller memory system. It also describes some of the programming considerations and common problems. Descriptio...

2009-04-21 标签:Real-Time 588

计时使用非易失性内存和微控制器-Using a Nonvol

计时使用非易失性内存和微控制器-Using a Nonvol

Abstract: This application note describes how to use a Nonvolatile Timekeeping RAM with an 8051-type microcontroller. An example schematic is provided. Source code provides an example of how to read and write the real-time clock (RTC) regi...

2009-04-21 标签:微控制器 342

DS1371/DS1372/DS1374 32位二进制计数器

DS1371/DS1372/DS1374 32位二进制计数器

Abstract: This application note addresses how to convert the 32-bit time value into a date and time value that can be put in the form of MM/DD/YYYY, HH:MM:SS. An algorithm for converting from a date and time to binary seconds is also descr...

2009-04-21 标签:二进制时间转换 726

使用DS1672低压串行计时芯片-Using the DS1

使用DS1672低压串行计时芯片-Using the DS1

Abstract: This application note provides an example schematic and software for the DS1672. The example software converts the 32-bit elapsed time value in the real-time clock (RTC) to year, month, date and time format. The example uses a su...

2009-04-21 标签:芯片 411

使用SmartWatch /幻影时钟与微控制器-Using

使用SmartWatch /幻影时钟与微控制器-Using

Abstract: This application note shows an example of how to interface a Phantom Real-Time Clock (RTC) to a microcontroller. This note includes a schematic and example code. Pin Assignment...

2009-04-21 标签:微控制器幻影时钟 709

PowerCap Package Allows for De

PowerCap Package Allows for De

Abstract: This application note provides an overview of the PowerCap product line. The PowerCap products allows surface-mounting of the component base, while keeping the temperature sensitive crystal and or battery in a seperate, snap-on a...

2009-04-21 标签:PowerCap 347

Design Considerations for Dall

Design Considerations for Dall

Abstract: A real-time clock (RTC) allows a system to synchronize or time-stamp events to a time reference that can be easily understood by the user. Because RTCs are used in an increasing number of applications, designers should familiariz...

2009-04-21 标签:Real-Time 582

Replacing the DS1287/DS12887 R

Replacing the DS1287/DS12887 R

Abstract: This application note describes the replacement of the DS1287/DS12887 real-time clock (RTC) or "CMOS clock" in a personal computer (PC). The CMOS clock is also sometimes referred to as the "battery" or "CMOS battery." ...

2009-04-21 标签:Real-Time 897

SPI接口的实时时钟与微控制器-Interfacing SP

SPI接口的实时时钟与微控制器-Interfacing SP

Abstract: Dallas Semiconductor/Maxim offers a variety of serial real-time clocks (RTCs). Several of these RTCs use the industry-standard Motorola SPI interface to communicate with a microprocessor. This application note helps customers und...

2009-04-21 标签:微控制器实时时钟 535

Interfacing a DS3234 Extremely

Interfacing a DS3234 Extremely

Abstract: This application note provides an example of hardware and software for interfacing an SPI™ real-time clock (RTC) to a Motorola® digital signal processor (DSP) that has a built-in SPI-interface module. This example uses ...

2009-04-21 标签:DSPRTC 560

选择备份源的实时时钟-Selecting a Backup

Abstract: Most Dallas Semiconductor real-time clocks (RTCs) include a supply input for a backup power source. This alternate supply source allows the RTC to maintain the current time and date while the main power source is absent. This app...

2009-04-21 标签:实时时钟备份源 393

如何使用DS1678实时事件记录-How to Use th

如何使用DS1678实时事件记录-How to Use th

Abstract: This note demonstrates an application using the DS1678 real-time event recorder. The software example includes basic operating routines. A schematic of the application circuit is included. DS1678 Pin Assignment...

2009-04-21 标签:DS1678 396

Recording Power Cycling Inform

Recording Power Cycling Inform

Abstract: This application note describes how to use the DS1602 or DS1603 Elapsed Time Counters to record power cycling information. Pin Assignment ...

2009-04-21 标签:Using 447

Interfacing an SPI RTC with a

Interfacing an SPI RTC with a

Abstract: This application note provides an example of hardware and software for interfacing a Serial Peripheral Interface (SPI) RTC with a Motorola DSP that has a built-in SPI interface module. This example uses a Motorola DSP Demo kit as...

2009-04-21 标签:DSP 272

Replacing the DS1202 with the

Abstract: This application note describes how to interface a DS1302 in an application that previously used the obsolete DS1202. IntroductionThis application note provides the information necessary to determine ...

2009-04-21 标签:DS1DS1202 391

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