Real time clock and calendar

文件：386.49 Kbytes 页数：48 Pages

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Real time clock and calendar

文件：386.49 Kbytes 页数：48 Pages

恩XP

实时时钟和日历

PCF8564A是一款CMOS实时时钟和日历，最适合低功耗应用。还提供可编程时钟输出、中断输出和电压过低检测器。所有地址和数据都可通过两线路双向I²C总线串行传输。最大总线速度为400 kbit/s。每次写入或读取数据字节后会自动递增内置字地址寄存器。 基于32.768 kHz石英晶体提供年、月、日、周、时、分和秒\n宽时钟工作电压范围：1.0 V至5.5 V\n低备用电流在3.0 V和25 ℃时典型为250 nA\n400 kHz双线I²C接口（1.8 V至5.5 V）\n低电压检测器\n警报和定时器功能\n两个集成式振荡器电容\n可编程时钟输出（32.768 kHz、1.024 kHz、32 Hz和1 Hz）给外围器件\n内部上电复位(POR)\nI²C从机地址：读取A3h、写入A2h;

恩XP

Real time clock and calendar

The PCF8564A is a CMOS real-time clock and calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I²C-bus. Maximum bus speed is 400 kbit/s. Th Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal\nWide clock operating voltage: 1.0 V to 5.5 V\nLow back-up current typical 250 nA at 3.0 V and 25 ℃\n400 kHz two-wire I²C interface (1.8 V to 5.5 V)\nLow-voltage detector\nAlarm and timer functions\n;

恩XP

Real time clock and calendar

The PCF8564A is a CMOS real-time clock and calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I²C-bus. Maximum bus speed is 400 kbit/s. Th Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal\nWide clock operating voltage: 1.0 V to 5.5 V\nLow back-up current typical 250 nA at 3.0 V and 25 ℃\n400 kHz two-wire I²C interface (1.8 V to 5.5 V)\nLow-voltage detector\nAlarm and timer functions\n;

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