Silicon Labs BG2B is an ultra-low-power Arm Cortex-M33 Bluetooth 6 LE SoC with support for Channel Sounding, “Secure Vault High” security, and integrated CAN-FD and peripherals such as LED drivers and ADCs for smaller, longer-lasting IoT devices.The company claims it’s the lowest-power Bluetooth LE device in its portfolio, with 1.1 µA EM2 sleep current with RAM retention, as well as 14%-15% lower MCU active current and lower Bluetooth receive current compared to Silicon Labs BG22/BG22L. The new microcontroller targets secure ranging, asset tracking, electronic shelf labels (ESLs), smart home, industrial monitoring, and vehicle diagnostics.Silicon Labs BG2B specifications:
CPU core – 32-bit Arm Cortex-M33 @ 80 MHz with DSP instructions and floating-point unit (FPU)
Memory – 64 kB or 128 kB SRAM
Storage – 1016 kB flash
Wireless – 2.4 GHz radio
