DS1337+

Medical Digital Thermometer Real-Time Clocks

美信实时时钟（RTC）

美信集成 实时时钟（RTC）封装于一系列广泛的低功耗、 高精确、小封装和基于 MEM 的集成电路中。RTC 集成电路即使主器件电源关闭也可测量时间，因此需要辅助电池或超级电容。功耗在大部分 RTC 设计中是关键因素，但精确性和小封装尺寸也很重要。最新的 RTC 集成电路支持串口，从而减少了封装引脚数。
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DS1337 Serial Real-Time Clock (RTCs)

Analog Devices DS1337 Serial Real-Time Clock (RTC) is a low-power clock/calendar with two programmable time-of-day alarms and programmable square-wave output. Address and data are transferred serially through an I²C bus. The clock/calendar provides information on seconds, minutes, hours, days, dates, months, and years. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for the leap year. The clock operates in a 24-hour or 12-hour format with AM/PM indicators.