The RV-8564-C3-TA-QC-020 is a real-time Clock Module with I2C bus. It has been specially designed to combine the 32.768kHz crystal unit with the CMOS-based oscillator and real-time-clock circuit. The calendar function tracks year, month, date and day-of-the-week with built-in century and leap-year flags. The clock function tracks minute and second in 24-hour format. Programmable alarm setting and universal timer functions increase flexibility.
