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Silicon Labs Series 3 SoCs Now Available to Power the Next Era of Connectivity

09.10. 2025 | News
Author: Jan Robenek
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Silicon Labs announced the general availability of the first products in its new Series 3 platform: the SiMG301 and SiBG301 SoCs. The devices, the first in the SixG301 family, are now shipping from Silicon Labs and authorized distribution partners worldwide. Device makers can continue to build on Series 2's breadth and maturity for ultra-low-power endpoints, and adopt Series 3 for more demanding, and feature-rich designs – without changing ecosystems, tools, or support models.

 

Built on an advanced 22nm process, Series 3 introduces a multi-core architecture that separates application, wireless, and security workloads, providing headroom for growing protocol stacks and emerging compute-intensive use cases at the edge. The SixG301 family consists of SiMG301 (Multiprotocol; Concurrent Zigbee®, Bluetooth® LE, and Matter over Thread; ideal for smart lighting, and other Matter-focused switches, sensors, and controllers), and SiBG301 (Bluetooth-Optimized).

 

Both devices offer developers generous Flash/RAM headroom with up to 4MB Flash and 512kB RAM. They both include Silicon Labs' PIXELRZ single wire communication interface for LED controller ICs as well as a LED pre-driver that enables low level and consistent dimming, which together simplify designs, reduce costs, and provide efficient power for smart home lighting, smart building lighting, and other lighting applications (more info).

 

robenek@dps-az.cz