Benefits and Features
● Highly Accurate RTC with Integrated MEMS
Resonator Completely Manages All Timekeeping
Functions
• Complete Clock Calendar Functionality Including
Seconds, Minutes, Hours, Day, Date, Month, Year,
and Century with Leap-Year Compensation up to
Year 2199
• Timekeeping Accuracy ±5ppm (±0.432 second/day)
from -40°C to +85°C
• Two Time-of-Day Alarms
• Temperature-Compensated Programmable Square-
Wave Output
• Uncompensated Programmable Clock Outputs
• Automatically Switch over to Backup Battery or
Supercapacitor on Power-Fail
• Digital Temperature Sensor with ±3°C Accuracy
• +1.6V to +5.5V Supply Voltage
● 64-Byte RAM for User Data Storage
● Simple Serial Interface Connects to Most
Microcontrollers
• I2C Interface
● Battery-Backup Input for Continuous Timekeeping
● Low-Power Operation Extends Battery-Backup
Runtime
● Operating Temperature Range: -40°C to +85°C
● 2.1mm x 2.3mm, 8-Pin WLP Package
● 4mm x 3mm, 8-Pin TDFN Package
● Underwriters Laboratories® (UL) Recognized

Applications
● Industrial
● Action Cameras
● Communications
● Handheld Instrumentation
● Power Meters
● Wearables