Real-Time Clocks

General Description The DS17285, DS17485, DS17885, DS17287, DS17487, and DS17887 real-time clocks (RTCs) are designed to be successors to the industry-standard DS12885 and DS12887. The DS17285, DS17485, and DS17885 (hereafter referred to as the DS17x85) provide a real-time clock/calendar, one tim

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美信

3V/5V Real-Time Clock

DESCRIPTION The DS17285/DS17287 are real-time clocks (RTCs) designed as successors to the industry standard DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. These devices provide the industry standard DS1285 clock function with either +3V or +5V operation. The DS17285 also incorpor

文件：411 Kbytes 页数：38 Pages

Dallas

Real-Time Clocks

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美信

3V/5V实时时钟

DS17285, DS17485, DS17885, DS17287, DS17487以及DS17887实时时钟(RTC)是工业标准的DS12885和DS12887的后续产品。DS17285，DS17485和DS17885 (下文以DS17x85代替)提供一个实时时钟/日历，一个定时闹钟，三个可屏蔽中断(共用一个中断输出)，可编程方波输出和114字节的电池备份NV SRAM。DS17x85还集成了许多增强特性，例如硅序列号，电源开/关控制电路，和2K、4K或8K字节的电池备份NV SRAM。DS17287，DS17487和DS17887 (下文以DS17x87代替)在24引脚DIP模块封装内集 • 集成了工业标准的DS12887 PC时钟外加增强特性\n• RTC计算秒、分、时、星期、日期、月份和年，并且具有闰年补偿，有效期至2099年\n• 可选的+3.0V或+5.0V工作电压\n• SMI恢复堆栈\n• 64位硅序列号\n• 电源控制电路，支持系统通过日期/时间闹钟或键盘开启电源\n• 晶体选择位，允许RTC工作于6pF或12.5pF晶体\n• 12小时或24小时时钟，具有带AM和PM指示的12小时模式\n• 114字节通用、电池备份NV SRAM\n• 扩展的电池备份NV SRAM\n• 2048字节(DS17285/DS17287)\n• 4096字节(DS17485/DS1;

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亚德诺

3V/5V Real-Time Clock

DESCRIPTION The DS17285/DS17287 are real-time clocks (RTCs) designed as successors to the industry standard DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. These devices provide the industry standard DS1285 clock function with either +3V or +5V operation. The DS17285 also incorpor

文件：411 Kbytes 页数：38 Pages

Dallas

Real-Time Clocks

General Description The DS17285, DS17485, DS17885, DS17287, DS17487, and DS17887 real-time clocks (RTCs) are designed to be successors to the industry-standard DS12885 and DS12887. The DS17285, DS17485, and DS17885 (hereafter referred to as the DS17x85) provide a real-time clock/calendar, one tim

文件：319.69 Kbytes 页数：30 Pages

Maxim

美信

Real-Time Clocks

General Description The DS17285, DS17485, DS17885, DS17287, DS17487, and DS17887 real-time clocks (RTCs) are designed to be successors to the industry-standard DS12885 and DS12887. The DS17285, DS17485, and DS17885 (hereafter referred to as the DS17x85) provide a real-time clock/calendar, one tim

文件：319.69 Kbytes 页数：30 Pages

Maxim

美信

3V/5V Real-Time Clock

DESCRIPTION The DS17285/DS17287 are real-time clocks (RTCs) designed as successors to the industry standard DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. These devices provide the industry standard DS1285 clock function with either +3V or +5V operation. The DS17285 also incorpor

文件：411 Kbytes 页数：38 Pages

Dallas

3V/5V Real-Time Clock

DESCRIPTION The DS17285/DS17287 are real-time clocks (RTCs) designed as successors to the industry standard DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. These devices provide the industry standard DS1285 clock function with either +3V or +5V operation. The DS17285 also incorpor

文件：411 Kbytes 页数：38 Pages

Dallas

3V/5V Real-Time Clock

DESCRIPTION The DS17285/DS17287 are real-time clocks (RTCs) designed as successors to the industry standard DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. These devices provide the industry standard DS1285 clock function with either +3V or +5V operation. The DS17285 also incorpor

文件：411 Kbytes 页数：38 Pages

Dallas