 Features
• Built-in 32.768 kHz quartz crystal
• Wake-up function (Alarm interrupt function): Settable on the second time scale from 1 second to 194 days
(Approximately half a year)
• Low current consumption: 0.25 μA typ. (VDD = 3.0 V, Ta = +25°C)
• Wide range of operation voltage: 1.8 V to 5.5 V
• 2-wire (I2C-bus) CPU interface
• Operation temperature range: Ta = −40°C to +85°C
• Lead-free (Sn 100%), halogen-free

 Applications
• IoT communications device
• Monitoring device
• Security device
• Battery system
• Energy harvesting system