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Micro Crystal AG, a subsidiary of the Swatch Group, showcased its latest innovation at Embedded World 2025: the RV-3028-C8 Real-Time Clock (RTC) module. This ultra-compact module measures just 2.0 x 1.2 x 0.6 mm, making it the smallest RTC module currently available. Designed for applications with stringent space constraints, such as wearables, IoT devices, medical equipment, and automotive electronics, the RV-3028-C8 integrates a dedicated CMOS RTC chip with a micro-sized quartz crystal within a hermetically sealed ceramic package. citeturn0search15

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Synaptics is my Embedded World 2025 video coverage sponsor, check out my Synaptics videos here: https://www.youtube.com/playlist?list=PL7xXqJFxvYvhAbQoe9YN4c84SqXxIY3fQ
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One of the standout features of the RV-3028-C8 is its ultra-low power consumption, operating at just 70 nA during timekeeping. This efficiency enables extended battery life or the use of smaller batteries, which is crucial for portable and wearable technologies. The module supports an operating voltage range from 1.1 V to 5.5 V and maintains a time accuracy of ±1 ppm at 25°C. Additional functionalities include time-stamping, alarms, timers, and an I²C interface operating at up to 400 kHz. citeturn0search11

In addition to the RV-3028-C8, Micro Crystal offers a comprehensive portfolio of timing solutions, including kHz oscillators, MHz quartz crystals, and temperature sensor modules. These products cater to a wide range of applications, from industrial automation to healthcare devices. The company’s expertise in miniaturization and low-power design positions it well to meet the evolving demands of the embedded systems market. citeturn0search10

At Embedded World 2025, Micro Crystal shared its exhibition space with sister companies Renata SA and EM Microelectronic, both part of the Swatch Group’s Electronic Systems division. Renata specializes in the production of primary and secondary microbatteries, offering solutions that complement Micro Crystal’s low-power modules. EM Microelectronic focuses on the design and manufacturing of ultra-low-power integrated circuits, further enhancing the group’s comprehensive offerings for embedded applications. citeturn0search12

The integration of these technologies underscores the Swatch Group’s commitment to providing holistic solutions for the embedded industry. By combining expertise in timing modules, battery technology, and integrated circuits, the group addresses the growing need for compact, energy-efficient components in modern electronic devices.

Micro Crystal’s participation in Embedded World 2025 highlights its dedication to advancing RTC technology. The company’s innovations not only meet current industry standards but also anticipate future trends in miniaturization and power efficiency. As the demand for smaller, more efficient electronic components continues to rise, Micro Crystal’s contributions are set to play a pivotal role in shaping the future of embedded systems.

Check out all my Embedded World 2025 videos in this playlist: https://www.youtube.com/playlist?list=PL7xXqJFxvYvjgUpdNMBkGzEWU6YVxR8Ga

This video was filmed using the DJI Pocket 3 ($669 at https://amzn.to/4aMpKIC using the dual wireless DJI Mic 2 microphones with the DJI lapel microphone https://amzn.to/3XIj3l8 ), watch all my DJI Pocket 3 videos here https://www.youtube.com/playlist?list=PL7xXqJFxvYvhDlWIAxm_pR9dp7ArSkhKK

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