Electronics Weekly
Announced today, there are parts for Zigbee, Bluetooth and Matter-over-Thread, and for mains or battery power.
SixG301 is the mains-powered (line-powered) family, where ‘x’ becomes ‘B’ for the Bluetooth LE (and Bluetooth mesh) focussed variant, or ‘M’ for multi-protocol types. Concurrent multi-protocol operation will be possible.
These are for smart home products and include an LED pre-driver for lighting applications.
On-board will be options up to 4Mbyte of flash and 512kbyte of RAM, helping to “future-proof customer designs as the requirements for Matter and other more demanding IoT applications continue to grow”, said SiLabs.
The flash is co-packaged, and with a 2Mbyte option, and a zero-flash option with an external QSPI interface with run-time authentication and encryption.
SixG302 is the battery-powered line, for which the company is claiming 15µA/MHz active current, which “makes it ideal for battery-powered wireless sensors and actuators for both Matter and Bluetooth applications”, said SiLabs.
First out of the traps is SiBG301, the mains-powered Bluetooth IC, which is sampling now with general availability slated for Q3 2025.
It has an 150MHz Arm Cortex-M33 core (see diagram) and a security engine designed for PSA level 3 certification. Multi-protocol operation is possible with Bluetooth and some proprietary 2.4GHz protocols, said the company.
Its 2.4GHz receiver receivers will have -106.8dBm sensitivity for 125kbit/s GFSK, -98.6dBm for 1Mbit/s and -95.7dBm for 2Mbit/s. Transmission it at up to 10dBm.
Particularly for lighting, two PixelRZ single wire communication interfaces are included – Electronics Weekly has requested more information on this interface, so watch this space it you are interested.
Operation is from a single rail between 1.8 and 3.63V, and over -40 to 125°C.
The similar SiMG301 will follow, which adds a 802.15.4 wireless interface capable of -106.3dBm sensitivity with 250kbit/s O-QPSK DSSS modulation – MSK and GMSK are also supported.
Samples of the battery powered types are scheduled to be with customers in 2026.
Find the mains powered SiBG301 product page here, and SiMG301 here
Mouser recently started stocking Silicon Labs’ SiWG917Y 16 x 21mm Wi-Fi 6, Bluetooth Low Energy 5.4 and Matter wireless modules, which measure x 2.3mm.
