Mikroe RTC 11 Click is designed to maximize battery life and reduce overall battery requirements in wearable applications. The Mikroe RTC 11 Click board features an Abracon AB0815 Real-Time Clock with ultra-low power and a sophisticated feature set. The AB0815 includes an on-chip oscillator to provide low power consumption, full RTC functions like battery backup, programmable counters, and alarms for timer and watchdog functions. This real-time clock has a low 22nA power requirement and communicates with an MCU using the SPI interface. The board is ideal for portable devices, wearables, medical equipment, and similar applications.