Proprietary Products

Proprietary Wireless Protocols for Sub-GHz and 2.4 GHz

Our proprietary wireless portfolio ranges from transceivers to multi-band wireless SoCs for IoT applications. Our devices offer ultra-low power, longest range, up to 20 dBm output power and several modulation schemes, while covering major frequency bands. Our Dynamic Multi-protocol (DMP) enables smartphone connectivity to long-range solutions, and easy to use SDKs accelerate proprietary protocol development.

Sub-GHz SoC and Module Selector Guide

Our Sub-GHz SoC and Module Selector Guide provides you with a quick, comparative overview of our portfolio to help you select the ideal SoC or module for your next project.

Our FG25 SoC Enables Landis+Gyr Smart Meters

Discover how Landis+Gyr is taking smart metering to new heights with our FG25, the first integrated Sub-GHz SoC that supports the latest Wi-SUN features.

Tech Talks: Unbox the xG28 Wireless SoC Family

Explore the new xG28 SoC family with our experts, featuring its secure dual-band Sub-GHz and 2.4 GHz Bluetooth LE capabilities, AI/ML hardware accelerator, and more.

Proprietary Wireless Sub-GHz and 2.4 GHz Select Columns
Select Columns
MCU Core Frequency Range (MHz) Flash (kB) RAM (kB) Max Output Power (dBm) GPIO Security Peak RX Sensitivity
EFR32FG28 Series 2 SoCs
Sub-GHz Wireless + 2.4 GHz BLE SoCs
ARM Cortex-M33 110 970 1024 128, 256 16 31, 49 AES-128 AES-256 ECC SHA-1 SHA-2 -124.8 (4.8 kbps OQPSK @ 915 MHz)
EFR32FG23 Series 2 SoCs
EFR32FG23 Series 2 SoCs
ARM Cortex-M33 110 970 128, 256, 512 32, 64 14, 20 22, 23, 30, 31 AES-128 AES-256 ECC SHA-1 SHA-2 -125.8 (4.8 kbps OQPSK @ 915 MHz)
FGM230 Sub-GHz SiP Modules
FGM230 Sub-GHz SiP Modules
ARM Cortex-M33 863 928 512 64 14 34
EFR32FG22 Series 2 SoCs
Proprietary 2.4 GHz EFR32FG22 SoCs (Series 2)
ARM Cortex-M33 2400 2483.5 512 32 6 18, 26 AES-128 AES-256 ECC SHA-1 SHA-2 -102.1 (250 kbit/s OQPSK)
EFR32FG12 Series 1 Sub-GHz and 2.4 GHz SoCs
Sub-GHz and 2.4 GHz
ARM Cortex-M4 110 2483.5 512, 1024 64, 128, 256 19, 20 28, 31, 32, 46, 65 AES-128 AES-256 ECC SHA-1 SHA-2 -126.2 (600 bps GFSK 915 MHz)
EFR32FG1 Series 1 Sub-GHz and 2.4 GHz SoCs
Sub-GHz and 2.4 GHz
ARM Cortex-M4 110 2483.5 32, 64, 128, 256 8, 16, 32 16.5, 19.5, 20 16, 28, 31, 32 AES-128 AES-256 ECC SHA-1 SHA-2 -121 dBm (2.4 kbps 2 GFSK 0.1% BER), -126.4 (600 bps GFSK 915 MHz), -126.4 (600 bps GFSK 915 MHz); -99 (250 kbps DSSS-OQPSK 2.4 GHz), -99 (250 kbps DSSS-OQPSK 2.4 GHz)
EFR32FG13 Series 1 Sub-GHz and 2.4 GHz SoCs
Sub-GHz and 2.4 GHz
ARM Cortex-M4 110 2483.5 512 64 19, 20 16, 31, 32 AES-128 AES-256 ECC SHA-1 SHA-2 -102.7 (250 kbps DSSS-OQPSK 2.4 GHz), -126.2 (600 bps GFSK 915 MHz), -126.2 (600 bps GFSK 915 MHz); -102.7 (250 kbps DSSS-OQPSK 2.4 GHz)
EFR32FG14 Series 1 Sub-GHz and 2.4 GHz SoCs
Sub-GHz and 2.4 GHz
ARM Cortex-M4 110 2483.5 128, 256 16, 32 19, 20 16, 28, 31, 32 AES-128 AES-256 ECC SHA-1 SHA-2 -103.3 (250 kbps DSSS-OQPSK 2.4 GHz), -126.2 (600 bps GFSK 915 MHz), -126.2 (600 bps GFSK 915 MHz); -103.3 (250 kbps DSSS-OQPSK 2.4 GHz)
EZRadioPRO Sub-GHz Wireless ICs
Proprietary EZRadioPRO Sub-GHz Wireless ICs
119 1050 0, 13, 16, 20
Si10xx Sub-GHz Wireless MCPs
Proprietary Si10xx Sub-GHz Wireless MCPs
8051 142 1050 32, 64 4352 13, 20 15

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Proprietary Kits & Boards
Starter Kits
Modular kits for software development and feature evaluation of IoT devices
Pro Kits
Modular kits for software development and feature evaluation of IoT devices
Development Kits
Full-featured application development kits
Evaluation Kits
Product and feature evaluation kits
Demo Kits
Use case and feature-specific demos
Reference Designs
Application-specfic designs showcasing complete system solutions
Radio Boards
Wireless starter kit plug-in boards featuring specific SoC or module wireless devices
Expansion Boards
Starter kit and ecosystem accessory boards
Thunderboard Kits
Low-cost software development and prototyping kits for IoT devices
Debug and Programming Tools
Debugging and programming tools and accessories

Proprietary Software Development

The Flex SDK is a complete software development suite for proprietary wireless applications that provides two paths for development. The first path begins with Silicon Labs RAIL (Radio Abstraction Interface Layer), which is an intuitive and easily-customizable radio interface layer designed to support proprietary or standards-based wireless protocols. The second path uses Silicon Labs Connect, an IEEE 802.15.4-based networking stack designed for creating easily customizable broad-based proprietary wireless networking solutions optimized for devices that require low power consumption for both sub-GHz and 2.4 GHz frequency bands and targeted for simple network topologies. The Flex SDK includes extensive documentation and sample applications, the popular range test, functionality for lab evaluation, wake-on-radio as well as bi-directional packet transmission and reception. All these examples are provided in source code within the Flex SDK sample applications. Using the supporting Simplicity Studio tools suite, developers can take advantage of the graphical user interface to quickly generate wireless applications, perform energy profiling and various system optimizations.

  Silicon Labs’ RAIL (Radio Abstraction Interface Layer) lets you adopt the latest RF technology without sacrificing the investment you’ve made in your wireless protocol. Designed to support proprietary or standards-based protocols, RAIL simplifies and future-proofs the migration of code to new ICs.
  Silicon Labs’ Connect is an IEEE 802.15.4 based wireless networking stack for broad-based proprietary applications and is optimized for devices that require low power consumption. This full-featured, easily customizable networking stack is designed for compliance with regulatory specifications across worldwide geographic regions and supports both sub-GHz and 2.4 GHz frequency bands.



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Secure, smart home solutions for Proprietary

Smart Home

Asset Tracking

Smart Metering

Proprietary Wireless

When a standard protocol does not fit your use case, or when your design has unique requirements, proprietary wireless networks can be the right solution. With proprietary protocols, you can design specifically for your use case, thus reducing memory and processing requirements and resulting in lower power and lower development cost. Additionally, proprietary networks are naturally more secure than other standards-based protocols due to the hidden nature of the of data rates, modulation, and packet structure. These parameters are more widely known for standard protocol networks, making them more vulnerable to security threats.

Proprietary Sub-GHz Band

Advantage of using sub-GHz frequencies in your designs is longer range. Sub-GHz radio waves can easily pass-through walls and other obstacles and can bend around buildings with much lower attenuation. Sub-GHz frequencies also have less interference than the 2.4 GHz band, which is crowded with signals from other sources such as Wi-Fi and Bluetooth devices. 

Proprietary 2.4 GHz Band

A proprietary 2.4-GHz network allows you to customize wireless application layer protocol and operates on a license free band around the world which means you can deploy your application at a lower cost. Best suits for custom wireless protocol applications and interoperability with legacy 2.4-GHz wireless protocol application.

Learn more about Proprietary with these training assets

Works With On-Demand 2024

Where Innovation Meets Implementation

2024 marks the 5th year of Works With, our industry-defining technical IoT developer conference. One of the defining characteristics of this event is the collection of industry experts, business leaders, and the minds driving the future of our industry. The full 2024 Works With Virtual agenda is now available on-demand.

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