•Built in frequency adjusted 32.768 kHz crystal unit.
•Interface Type ׃ I2C-Bus Interface (400 kHz)
•Operating voltage range : 1.8V to 5.5 V
•Timekeeper voltage range : 1.0V to 5.5 V / -20 °C to +70 °C
•Low backup current ׃ 275nA / 3.0 V(Typ.)
•32.768 kHz frequency output function ׃ C-MOS output With Control Pin
•The various functions include full calendar, alarm, timer,
and power supply voltage monitoring function