Silicon Labs

IoT Company Silicon Labs

Silicon Labs Unveils First Series 3 SoCs, Powering the Next Wave of IoT Breakthroughs


Silicon Labs, the leading innovator in low-power wireless solutions, today announced the first products of its Series 3 portfolio with the introduction of two new wireless SoC families built at the advanced 22 nanometer (nm) process node: the SiXG301 and SiXG302. These highly integrated solutions represent a significant leap forward in compute power, integration, security, and energy efficiency, addressing the growing demands of both line-powered and battery-powered IoT devices.

As smart devices grow more sophisticated and compact, the need for powerful, secure, and highly integrated wireless solutions has never been greater. The new Series 3 SoCs deliver on this promise with advanced processing capabilities, flexible memory options, best-in-class security, and streamlined external component integration. Silicon Labs' Series 1, Series 2, and Series 3 platforms will continue to complement one another in the market and address the full breadth of IoT applications.

The new Series 3 families of SoCs include:​

SiXG301: Optimized for Line-Powered Applications
Purpose-built for line-powered smart devices, the SiXG301 includes an integrated LED pre-driver and offers an ideal solution for advanced LED smart lighting and smart home products, supporting Bluetooth, Zigbee, and Thread with support for Matter. Built with high Flash and RAM overhead of 4 MB and 512 kB, respectively, the SiXG301 helps future-proof customer designs as the requirements for Matter and other more demanding IoT applications continue to grow. This SoC enables concurrent multi-protocol operation for Zigbee, Bluetooth and Matter over Thread networks at the same time, which helps simplify manufacturing SKUs, reduce costs, save board space for additional device integrations, and improve consumer usability. Already in production with select customers, the SiXG301 is slated for general availability in Q3 2025.

SiXG302: Designed for Battery-Powered Efficiency
Expanding Series 3 to battery-powered applications, the upcoming SiXG302 will deliver groundbreaking energy efficiency without sacrificing performance. Featuring Silicon Labs' advanced power architecture, the SiXG302 is designed to use only 15 µA/MHz active current, 30% lower than competitive devices in its class. This makes it ideal for battery-powered wireless sensors and actuators for both Matter and Bluetooth applications. The SiXG302 is planned for customer sampling in 2026.

"Smart devices are becoming more complex, and designers are challenged to pack greater functionality into smaller spaces while maintaining energy efficiency," said Ross Sabolcik, Senior Vice President of Product Lines at Silicon Labs. "With the SiXG301 and upcoming SiXG302 families, we're delivering flexible, highly integrated solutions that enable next-generation IoT devices—whether they're plugged in or running on battery power."

The SiXG301 and SiXG302 families will initially include "M" devices for multiprotocol, the SiMG301 and SiMG302, and "B" devices optimized for Bluetooth LE communications, the SiBG301 and SiBG302.

By leveraging the 22 nm process node for all Series 3 devices, Silicon Labs is addressing the growing demand for more powerful and efficient far-edge devices across a wide range of IoT applications—from smart cities and industrial automation to healthcare, smart homes, and beyond. These new SoCs offer device makers a scalable, secure platform to create the next wave of innovative, high-performance IoT products.

Additionally, Silicon Labs will highlight the SiXG301 along with its portfolio of industry-leading innovations during the 2025 Works With conference series. This global event brings together industry experts to explore the best practices, emerging technologies, and transformative trends shaping the industry. The conference will be hosted across multiple international locations, with a virtual edition available for broader accessibility:
  • Works With Summit: October 1-2 in Austin, TX
  • Works With Shenzhen: October 23
  • Works With Bangalore: October 30
  • Works With Virtual: November 19-20
Silicon Labs (NASDAQ: SLAB), a leader in secure, intelligent wireless technology for a more connected world, today announced that its MG26 family of wireless SoCs is now generally available through Silicon Labs and its distribution partners. As the industry's most advanced, high-performance Matter and concurrent multiprotocol solution to date, the MG26 SoC features double the Flash and RAM of other Silicon Labs multiprotocol devices, advanced AI/ML processing, and best-in-class security to empower developers to design future-proof Matter applications.

Silicon Labs Redefines Smart Home Connectivity with New Concurrent Multiprotocol SoC


"With MG26, we're not just setting a new standard in multiprotocol wireless performance for battery-based, low-power smart home applications—we're redefining what's possible for the future of IoT connectivity with Matter," said Jacob Alamat, Senior Vice President for the Home and Life business unit at Silicon Labs. "This device empowers developers to create smarter, safer, and more powerful solutions in an increasingly connected world."

Further enhancing security through its Custom Part Manufacturing Service (CPMS), Silicon Labs is the only Matter SoC device maker that allows customers to customize their order with their own Matter device attestation certificates (DAC), simplifying and accelerating product launches using Silicon Labs Matter-enabled SoCs while preventing IP theft and counterfeiting.

MG26 SoC Powers Advanced IoT Applications and Matter​

The MG26 SoC significantly advances Matter adoption with its concurrent multiprotocol capabilities, enabling integration of various Smart Home and Building devices like LED lighting, switches, sensors, and locks into both Matter and Zigbee networks simultaneously. This allows users to create automations and routines that incorporate more devices across different ecosystem.

In addition, the MG26's AI/ML capabilities using its embedded accelerator also enhance its performance in critical tasks like predictive maintenance, anomaly detection, keyword detection, vision, and more and more applications that span across the IoT. To help developers build devices capable of running advanced IoT applications, the MG26 family offers:
  • Higher compute in a multicore format with an ARM® Cortex®-M33 CPU and dedicated cores for the radio and security subsystems, freeing up the main core for customer applications.
  • Doubled Flash, RAM, and GPIO capacity compared to the MG24 device family, allowing IoT device builders to develop advanced edge applications that leverage larger, more accurate machine learning models for improved performance. It also allows for the processing of larger machine learning workloads like higher resolution vision.
  • Embedded AI/ML hardware acceleration, enabling up to 8x faster processing of machine learning algorithms using as little as 1/6th the power compared to running on the CPU. Silicon Labs' new AI/ML Developer Journey provides an easy on-ramp for developers to start building new models to take advantage of this processing power.
  • Best-in-class security with Silicon Labs Secure Vault™ and ARM TrustZone, compliant with all Matter security requirements.
    • Using Silicon Labs Custom Part Manufacturing Service, MG26 devices can also be programmed with customer Matter device attestation certificate (DAC), security keys and other features in the fabrication process on demand, further hardening them against vulnerabilities.
    • Secure OTA firmware updates in conjunction with Secure Boot prevent the installation of malicious software and allow for vulnerability patching.
  • Concurrent Multiprotocol, enabling the ability to run both Zigbee and Matter over Thread at the same time, simplifying SKU management for the product manufacturer and ease of use for the end user.
  • Industry-leading RF performance to energy-efficiency ratio, with transmission power of up to +19.5 dBm and world-leading receiver sensitivity with ultra-low TX, RX, and sleep currents enable long-life battery-powered IoT devices with superior wireless performance.

Setting the Industry Standard for Developing with Matter​

Consumers want Matter devices that are secure, interoperable, and easy to use. Austrian smart lock manufacturer Nuki, which will enter the U.S. market in 2025, chose Silicon Labs as Matter partner for their newest Smart Lock to achieve reliable, efficient connectivity. This is Nuki's first electronic lock that's not only compatible with European doors, but also with US deadbolts. Silicon Labs Matter-ready SoCs enable Nuki's smart locks to operate for extended periods without frequent battery replacements, support various wireless protocols using Matter, and ensure seamless connectivity to home networks.

"Silicon Labs' Matter-ready SoCs enable us to bring super compact, battery-driven devices with parallel support for several communication protocols to the market," said Jürgen Pansy, co-founder and Chief Innovation Officer of Nuki. "Our latest innovation, the award-winning Smart Lock, supports Matter via Thread using Silicon Labs hardware that saves energy and space in the lock's design to allow for additional connectivity integrations like Bluetooth LE and Wi-Fi."

Silicon Labs Leads the Way in Matter Expansion​

Since its early announcement in 2024, MG26 has been recognized globally for its impressive capabilities, winning industry awards such as the Embedded Computing Design's Best in Show Award, IoT Evolution World's 2024 Product of the Year, and AspenCore World Electronics Achievement Award.

The Matter ecosystem is anticipated to experience significant growth, driven by new device types, enhanced security, and industry collaboration. As the leading semiconductor code contributor to Matter, Silicon Labs is proud to be part of this expansion.

Learn more about how to develop cutting-edge Matter- and AI/ML-enable devices using Silicon Labs below:
  • The Silicon Labs Matter Developer Journey
  • The Silicon Labs AI/ML Developer Journey
  • Register for the March 18 Tech Talk introducing the MG26
  • Silicon Labs Wi-Fi SoCs with Matter support: SiWG917
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