Real time clock and calendar

文件：386.49 Kbytes 页数：48 Pages

恩XP

Real time clock and calendar

文件：386.49 Kbytes 页数：48 Pages

恩XP

Real time clock and calendar

文件：386.49 Kbytes 页数：48 Pages

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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