company blog about Recycle Silicon Labs Zigbee Wireless Networking Systems:EFR32MG24,EFR32MG29,EFR32MG26,SiMG301

Recycle Silicon Labs Zigbee Wireless Networking Systems:EFR32MG24,EFR32MG29,EFR32MG26,SiMG301

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1. Inventory Classification and Submission of Inventory List

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Silicon Labs’ Zigbee wireless SoC portfolio, covering both the Series 2 and the next-generation Series 3 platforms, fully supports Zigbee 3.0, Thread, Matter and BLE Low Energy, all running concurrently. Designed for four mainstream IoT scenarios—battery-powered end devices, industrial mesh nodes, gateway hubs and mains-powered smart lighting—it serves as the core hardware foundation for Zigbee mesh networks in smart homes, building automation and industrial IoT, thanks to its high reception sensitivity, ultra-low sleep power consumption and Secure Vault hardware security engine. The entire chip family strikes a balance between cost, RF performance, memory and computing power, and security levels, enabling hardware selection to cover all network nodes, from end-point sensors and relay routers to gateway controllers.

EFR32MG24 | Series 2 Cost-Effective Zigbee Multi-Protocol SoC

The EFR32MG24 is the main mass-production model within the Series 2 platform. It offers a balanced combination of RF performance, ultra-low power consumption and excellent value for money, making it the SoC of choice for the large-scale commercial deployment of Zigbee end devices.

Core architecture: ARM Cortex‑M33, clocked at 78 MHz, with an integrated DSP and FPU (floating-point unit), and integrated AI/ML hardware accelerators; Up to 1536KB of Flash and 256KB of RAM.

RF Specifications: 2.4GHz RF, maximum transmit power of +19.5dBm, Zigbee O-QPSK receive sensitivity of –106dBm, ample link margin, and strong wall-penetration and mesh relay capabilities.

Security Capabilities: Secure Vault subsystem, supporting secure key storage, tamper protection and secure firmware updates, meeting basic security certification requirements for IoT devices.

Power Consumption Characteristics: Gecko multi-mode sleep; EM4 deep sleep with extremely low power consumption, suitable for long-term power supply from button cells and alkaline batteries.

Protocol Support: Zigbee 3.0, Thread, Matter and BLE 5.3; supports dynamic multi-protocol switching, enabling simultaneous Zigbee and Bluetooth debugging and network configuration.

Typical Applications: Smart home sensors, door and window contacts, infrared motion detectors, wireless switches, battery-powered door locks, and small to medium-sized Zigbee router nodes; paired with the MGM240 series of pre-certified wireless modules to simplify RF design and facilitate rapid global compliance certification.

EFR32MG29 | Series 2 Wide-Voltage Industrial-Grade Zigbee SoC

The EFR32MG29 is designed for demanding industrial and battery-constrained scenarios. It is the Zigbee wireless SoC within the family with the strongest battery compatibility, optimised specifically for devices powered by a single dry cell.

Core architecture: Cortex‑M33 78MHz, 1024KB Flash, 256KB RAM; integrated on-chip DC‑DC boost converter, capable of operating at voltages as low as 1.2V, allowing direct power supply from a single 1.5V alkaline battery without the need for external boost components.

RF Performance: Maximum transmit power of +20 dBm; enhanced RF anti-interference design significantly improves Mesh network stability in environments with strong electromagnetic interference and reinforced concrete structures, resolving the issue of packet loss due to node disconnections in industrial settings.

Security Configuration: ‘Secure Vault High’ high-level security, protecting against both local and remote attacks; suitable for commercial buildings and industrial monitoring equipment.

Power Consumption Design: Extremely low deep sleep current, enabling several years of device operation on a single AA battery.

Protocol Stacks: Complete Zigbee, Thread, Matter and BLE protocol stacks, supporting large-scale mesh networking.

Typical Applications: Battery sensors in commercial buildings, industrial environmental monitoring nodes, wireless data acquisition devices for retrofitting older buildings, and low-voltage-powered Zigbee end devices and routers; suitable for hardware designs with limited battery space where multiple batteries cannot be used.

EFR32MG26 | Series 2 High-Performance, High-Capacity Zigbee Gateway/Router SoC

The EFR32MG26 represents the pinnacle of performance within the Series 2 platform, offering extensive memory resources. Designed for complex mesh networks, gateway hubs and edge AI processing nodes, it is the model best suited for future protocol iterations.

Core architecture: Cortex-M33 at 78 MHz, featuring DSP/FPU and AI-ML hardware acceleration; Up to 3MB Flash and 512KB RAM provide ample memory capacity to simultaneously support the Zigbee, Thread and Matter protocol stacks, whilst leaving headroom for firmware upgrades and edge algorithm execution.

RF Capabilities: High-performance 2.4GHz RF with excellent reception sensitivity, suitable for Zigbee coordinators and large-scale routing nodes, supporting high-capacity mesh networks with hundreds of end nodes.

Security Unit: Secure Vault, supporting PSA security certification, gateway device key protection and secure OTA updates.

Peripheral Resources: A wealth of peripherals including GPIO, UART, SPI and I²C, facilitating the connection of external devices such as Ethernet and RS-485 to extend gateway functionality.

Protocol Capabilities: Zigbee 3.0, OpenThread, Matter and BLE, supporting complex multi-protocol concurrency.

Typical Applications: Zigbee gateways, smart home control hubs, large-scale building mesh routing, smart door locks, glass breakage detection, predictive maintenance for devices, and IoT endpoints requiring simple local AI inference.

SiMG301 | Series 3 22nm Next-Generation Mains-Powered Zigbee Multi-Protocol SoC

The SiMG301 belongs to the all-new Series 3 platform, utilising a 22nm process and a multi-core architecture. Designed specifically for mains-powered smart devices, it is the flagship wireless SoC for smart lighting in the Matter era.

Multi-core architecture: Application core Cortex-M33 running at up to 150MHz, with dedicated cores for the radio and security engine, ensuring task isolation and non-preemptive operation; Up to 4MB of Flash and 512KB of RAM, with support for up to 8MB of external Flash.

Protocol Capabilities: Supports concurrent multi-protocol (CMP) operation, enabling the simultaneous running of Zigbee and Matter over Thread on a single chip. A single hardware solution is compatible with two ecosystems, reducing product SKUs; it also supports BLE low-power network configuration and debugging.

Dedicated lighting integration: Features enhanced PWM dimming, PIXELRZ single-wire interface and LED pre-driver circuitry, significantly reducing the number of components in the LED lighting BOM and simplifying the hardware design of smart bulbs and power supplies.

Security level: Series 3 Secure Vault High, PSA Certified Level 4 (the highest security level), with hardware tamper protection, secure debugging and secure storage, meeting Matter’s stringent security requirements.

RF Specifications: 2.4 GHz RF, optimised for mains-powered device power consumption scenarios, with a transmission power of +10 dBm, suitable for indoor mesh relays.

Typical Applications: Smart LED luminaires, smart sockets, smart wall switches, mains-powered controllers; the chip of choice for next-generation Matter+Zigbee dual-mode lighting products.

Advantages of the Zigbee Wireless Network System Total Solution

Unified software ecosystem: All chips are based on the Simplicity Studio development environment; the Zigbee, Thread and Matter protocol stacks share a common origin. A single set of development tools enables the development of all nodes from end devices to gateways, reducing software migration costs.

Complete network coverage: EFR32MG24/MG29 act as battery-powered end devices; the EFR32MG26 serves as a coordinator gateway; and the SiMG301 acts as a mains-powered lighting router, building a complete Zigbee mesh network with end-to-end hardware connectivity spanning end devices, routers and coordinators.

Native built-in security: The Secure Vault hardware security engine ensures that keys are not exposed at the software layer, supports secure OTA updates, and complies with domestic smart home security and Matter certification requirements.

Seamless multi-protocol upgrades: Native hardware support for the evolution from Zigbee to Matter; no hardware redesign is required, as protocol iterations are achieved via firmware updates, thereby protecting hardware investment.

Modular implementation path: Official pre-certified wireless modules are available for all SoCs, mitigating RF debugging risks and shortening time-to-market.