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