•Built in frequency adjusted 32.768 kHz crystal unit.
•Interface Type : I2C-Bus interface (400 kHz)
•Operating voltage range : 1.7 V to 5.5 V
•Wide voltage for Timekeeping : 1.3 V to 5.5 V
•Low backup current : 0.35 µA / 3 V (Typ.)
•32.768 kHz frequency output function : C-MOS output With Control Pin
•The various functions include full calendar, alarm, timer.