Features

 Embedded high-stability 32 KHz DTCXO

 Accuracy: ±3.8 ppm max from 0 to 50°C

 Supply voltage: 1.6 to 5.5 V

 Current: 0.8 μA typical at 3.0 V

 400 kHz I2C interface

 Time-of-day alarm (with interrupt)

 Fixed-cycle timer interrupt function

 Time update interrupt function

 Programmable frequency output: 1 Hz, 1 KHz

and 32 KHz

 Registers for seconds, minutes, hours, day-ofweek,

date (day of month), month and year

with automatic leap year compensation

 Programmable temperature compensation

intervals: 0.5 s, 2 s (default), 10 s, 30 s