Low-cost sub-GHz long-range connectivity for IoT markets

Silicon Labs has introduced the FG23L sub-GHz SoC, the latest addition to the Series 2 portfolio, set to be available on September 30, 2025. This new SoC offers a balance of high performance and secure long-range connectivity at a reduced cost, making sub-GHz IoT accessible to a wider range of markets and applications. By combining essential performance with affordability, the FG23L aims to drive innovation and adoption in the IoT space.

Developers will benefit from streamlined design tools like Simplicity Studio 5 and the Radio Configurator, which facilitate faster development and reduce complexity across global sub-GHz bands. The EFR32FG23L wireless SoCs will be generally available on September 30, with supporting development kits already accessible worldwide, providing developers with the resources they need to leverage the capabilities of the FG23L.

Chad Steider, Senior Wireless Product Marketing Manager at Silicon Labs, sheds light on the innovations brought by the FG23L. He explains that while previous additions to the Series 2 portfolio focused on adding features and addressing emerging markets, the FG23L takes a different approach. It caters to the legacy proprietary market, offering simpler sub-GHz SoCs that provide scalable processing and RF performance to meet the demands of a vast number of deployed devices.

The FG23L is designed to address the lower end of the IoT market, offering developers a platform that strikes a balance between cost and performance. This SoC enables developers to find the sweet spot between designing for affordability and functionality, while also providing a migration path for future scalability. With enough processing power to support simple AI/ML at the edge, the FG23L offers a versatile solution for a wide range of IoT applications.

When it comes to security, the FG23L features Secure Vault™ Mid security, providing mid-level security measures. For customers requiring higher security standards, there is a seamless migration path to other Silicon Labs platforms with enhanced security features. This approach allows developers to invest in the FG23L today and easily transition to more advanced security solutions as needed, ensuring long-term flexibility and protection.

Furthermore, the FG23L offers a range of wireless protocols to cater to diverse market needs. Silicon Labs has seen success with protocols like Wirepas, Wi-SUN, and Mioty, each offering unique advantages in specific applications. The FG23L serves as an entry point for developers looking to enhance edge intelligence in simple products while providing a clear path for future growth and protocol adaptation, ensuring compatibility and scalability in evolving IoT environments.