Wireless SoC offers best price and performance for sub-GHz IoT

Silicon Labs has announced that the FG23L wireless SoC, the newest addition to its Series 2 portfolio, will be generally available from September 30. Developer kits are available now. The device elevates the company's Sub-GHz leadership to a new level, offering secure, long-range connectivity at a fraction of the cost. By balancing essential performance with unmatched affordability, it opens Sub-GHz IoT to broader markets and higher-volume applications.

"The FG23L extends Silicon Labs' proven Sub-GHz leadership into the high-volume, cost-sensitive segment of the market," said Ross Sabolcik, senior vice president of IoT Products at Silicon Labs. "By delivering the best-in-class combination of range, efficiency, and security at the industry's most competitive price-performance, we're enabling customers to bring more connected devices to market faster and at lower cost than ever before."

As demand grows for long-range, cost-optimised wireless IoT solutions in industrial automation, smart cities, and building automation, the device is purpose-built to help customers fulfil these needs with higher performance and lower system cost. Where competitive offerings often force trade-offs between range, security, or efficiency, the device delivers on all three.

With a best-in-class link budget of ~146dB, the device provides up to twice the range of comparable devices. Its combination of +20dBm transmit power, high receiver sensitivity, and ultra-low power consumption enables reliable connectivity and over 10 years of battery life, critical for large-scale IoT deployments where device longevity and total cost of ownership matter most.

The SoC integrates a 78MHz Cortex-M33 core, dual-core wireless architecture, and Secure Vault Mid security to deliver advanced compute performance, robust connectivity, and protection against evolving security threats. Developers benefit from a rich peripheral set, 23 GPIOs, and streamlined design tools, including Simplicity Studio 5 and the Radio Configurator, which speed up development and lower complexity across global Sub-GHz bands.

This unique combination of performance, energy efficiency, and affordability enables customers to scale IoT deployments faster and more cost-effectively. From industrial sensors, building automation, and smart city infrastructure to agricultural IoT and electronic shelf labels (ESLs), the FG23L empowers manufacturers to design connected products that compete more effectively in cost-sensitive markets.

Developers also have a seamless migration path from FG23L to FG23 and other Sub-GHz parts from the company in case they are looking for more memory, more features, higher performance, or lower power.