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    Unveiling nanoPower real-time clock for long battery life in wearables and portable systems

    The MAX31341B nanoPower real-time clock (RTC) from Maxim Integrated Products, Inc. enables designers of space-constrained systems such as wearables, medical monitors, point-of-sale (POS) 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 2mm x 1.5mm, the RTC cuts the size by more than 35 percent to decrease the overall system design.

    Key Advantages:

    Long Battery Life: Operates 18 percent less than the closest competitor at under 180nA, the timekeeping current on MAX31341B allows a typical lithium coin-cell battery to last for more than 10 years in the battery backup mode.
    Small Solution Size: Minimizes external circuitry by incorporating features such as integrated load cap, trickle charger, power management and 64-byte RAM.
    Accurate Time-keeping: Up to 100ppm (parts per million) accuracy over -40 degrees Celsius to +85 degrees Celsius based on external crystal.

    “Designers of compact electronic systems are always striving to lengthen the battery life of their systems,” said Kevin Anderson, senior analyst at IHS Markit. “Any solution that extends battery life by making circuits more efficient will draw interest of engineers designing next-generation systems.”

    “Maxim’s real-time clock delivers accurate timekeeping while extending battery life and saving power for always-on, space and power-constrained applications,” said Binay Bajaj, business management director for the Core Products Group at Maxim Integrated. “As the industry’s only RTC with power-management capabilities, it can offload the application processor of the timekeeping task and remain as the only device that is on when a device is not in use.”

    For more information, visit: www.maximintegrated.com

    ELE Times Research Desk
    ELE Times Research Deskhttps://www.eletimes.com
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