Low-Power RTC Enables Green IoT

EM Microelectronic’s EM3028 real-time clock (RTC) module claims an industry benchmark for accuracy and power consumption. leading the way for green IoT applications with 50% extended battery life compared to its closest competitor, at double the accuracy. It extends the device life span at a reduced overall BOM cost. The device is said to provide accurate sleep and wake-up timing, eliminating the need to frequently charge or replace the batteries of a wearable device.


The high accuracy and long-term stability of this RTC guarantee consistent performance throughout the device lifetime without the need to calibrate during manufacturing. Its 1-ppm accuracy guarantees a 30 seconds precision over one year, while consuming the energy equivalent of four water drops per day. The device features an integrated backup switch and allows waking up a device, years after it has been switched off for power saving purposes.

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Features include a 40-nA current consumption, 1-ppm accuracy, a 32-bit UNIX timer, operating voltage range as low as 1.2V, and a plug-and-play, factory pre-calibrated non-volatile configuration setting guaranteeing the configuration and user parameters are never lost, even in case of system power fail. The EM3028 is available as a standalone IC or in customized, application-specific modules. For further details, checkout the EM3028 datasheet.

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