The SiMG301 Series 3 from Silicon Labs are Multi-Protocol Wireless System-on-Chips (SoCs) that operate in the 2.4 GHz band. They enable efficient computing, high power efficiency, robust security, and low cost to tap into emerging IoT markets. These SoCs consist of a 32-bit ARM Cortex-M33 core with up to 4 MB Flash and 512 KB RAM, a 2.4 GHz radio, clock management, timers and triggers, analog I/F, energy management, security, and serial/peripheral interfaces. They support multiple wireless protocols, including Bluetooth, proprietary 2.4 GHz, Matter, Thread, and Zigbee. The memories allow demanding applications by supporting concurrent protocols on a single device, simplifying ease of use. These SoCs deliver a Tx output power of up to 10 dBm and have an Rx sensitivity of -106.8 dBm.
The SiMG301 Series 3 utilizes several modulation schemes such as 2(G)FSK with configurable shaping, OQPSK DSSS, and (G)MSK. These wireless SoCs are equipped with multiple security features – ARM TrustZone, AES, secure debug unlock, anti-tamper, and DFA detection, protecting both data and device from attacks. The chips can be configured using peripherals - LETIMER, PCNT, and WDOG, and also include a PIXELRZ interface for control with integrated LED pre-driver supporting low-level and consistent dimming. They require a DC supply of 1.8 to 3.6 V and consume 11.4 mA (Tx) & 9 mA (Rx) of current. These SoCs are available in QFN32 packages measuring 4 x 4 mm or QFN40 packages that measure 5 x 5 mm. They are ideal for smart lighting, smart home, and building automation applications.
