DS1302Z+MSK

The DS1302 is a trickle-charge real-time clock IC that integrates an RTC/calendar and 31 bytes of non-volatile static RAM. It communicates with a microprocessor via a simple serial interface. The RTC/calendar counts seconds, minutes, hours, days, weeks, months, and years, with automatic end-of-month date adjustment and leap year correction. The clock supports 24-hour or 12-hour format with AM/PM indication. The 31-byte RAM is available for temporary storage of critical data. Synchronous serial communication simplifies microprocessor connectivity, requiring only three lines: RST (reset), I/O (data line), and SCLK (serial clock). Data can be transferred in single-byte or multi-byte (up to 31 bytes) format. The IC features extremely low power consumption, drawing less than 10µW while maintaining data and timekeeping.