Maxim nanoPower real-time clock extends battery life in wearables, POS

The MAX31341B nanoPower real-time clock from Maxim Integrated Products enables designers of space-constrained systems such as wearables, medical monitors, point-of-sale equipment and portable terminals to extend battery life as well as save power and space. More than 35 percent smaller than the tiniest RTC alternatives available today, this nanoPower RTC, which operates at less than 180nA, offloads the central microcontroller from timekeeping, allowing for greater energy savings during sleep cycles and extension of battery runtime.

Systems that use microcontrollers for accurate timekeeping waste battery life, which is unacceptable in wearable applications. This approach is not the most energy efficient, especially when small batteries power the system. The MAX31341B is designed with industry-leading power-management circuitry that remains on during dormant periods, providing timekeeping so that the microcontroller shuts down to preserve power and extend battery life. Available in an ultra-small wafer-level package measuring 2x 1.5mm, the RTC cuts the size by more than 35 percent to decrease the overall system design.

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