A dual-band SoC, the FG28 includes radios for sub-Gigahertz (Ghz) and 2.4 Ghz Bluetooth LE, as well as a built-in AI/ML accelerator for machine learning inference, as well as Silicon Labs’ Secure Vault technology.
“The FG28 SoC addresses several key needs for our customers when it comes to developing and deploying low-power wide area networks,” said Daniel Cooley, CTO of Silicon Labs. “By including Bluetooth, it gives users an easy way to provision and deploy new devices onto the network, while the sub-Ghz band is designed to support device communications over one mile, allowing for new edge applications in areas like smart agriculture, smart cities, and neighbourhood networks like Amazon Sidewalk.”
As connectivity and computing power is pushed to the edge, new emerging applications require solutions that can provide a “Swiss army knife” of connectivity options. By providing sub-Ghz connectivity using networks like Wi-SUN, the FG28 can serve as the battery-operated end node in smart cities, for example, or as livestock trackers and health monitors in large farms.
Bluetooth connectivity will allow for devices to easily be deployed on the network, but also allows for operators to connect to the device locally for diagnostics, and data downloads, for example.
The FG28 SoC has several additional features that can open new applications for sub-Ghz devices:
- The industry’s first integrated AI/ML hardware accelerator in a sub-Ghz SoC, allowing for machine learning inference at the edge to enable predictive maintenance warnings, monitor soil conditions for key conditions like moisture and pH levels, and more.
- 1024 kB of flash storage and 256 kB of RAM, to meet the memory needs of a wide range of protocols and technology stacks.
- Secure Vault Mid and High support to better build trust in the device and allow designers to choose the level of security they need for their applications.
- Energy-efficient radio core with low active and sleep currents with fast wakeup times ideal for battery-operated end nodes.
- Up to 49 General Purpose Input/Output (GPIO) pins for robust peripheral connectivity.
The FG28 is sampling now with general availability planned before the end of 3Q 2023.
In addition, the FG28 will also be available in derivatives optimised for Amazon Sidewalk and Z-Wave Long-Range and as a stand-alone MCU.
