Volver a Silicon Labs

Silicon Labs BG2B Low-Power BLUETOOTH® LE SoCs

Silicon Labs BG2B Low-Power BLUETOOTH® Low Energy (LE) SoCs are designed for long-lifetime, battery-powered IoT devices that require Bluetooth LE connectivity, advanced ranging capabilities, and hardware-based security. The EFR32BG2B family combines an 80MHz Arm® Cortex®-M33 processor, dedicated radio resources, and Secure Vault™ High protection in a single-die wireless SoC platform. The BG2B series supports Bluetooth LE 6.x and Channel Sounding while prioritizing low-power operation through a dual-output DC-DC architecture. Silicon Labs designed the platform to reduce system energy consumption while enabling secure distance awareness, improved battery life, and simplified product development for connected devices.

Features

  • Bluetooth LE 6.x wireless connectivity support
  • Channel Sounding support for distance-aware applications
  • Secure Vault High hardware-based security architecture
  • Dual-output DC-DC power architecture for energy-efficient operation
  • Hardware cryptographic acceleration and secure boot capabilities
  • Arm Cortex-M33 processor with TrustZone support
  • Anti-tamper protection and DPA countermeasures
  • Concurrent analog signal acquisition using dual ADCs
  • Integrated CAN FD support on select devices
  • Integrated LED sink functionality on select devices
  • Designed for PSA Level 3 certification targets
  • AEC-Q100 Grade 1 qualification

Applications

  • Electronic shelf labels (ESL)
  • Logistics and asset tracking
  • Animal monitoring
  • Energy conversion and storage
  • Industrial automation
  • Gateway devices

Specifications

  • 80MHz Arm Cortex-M33 processor
  • 1016KB flash memory
  • Up to 128KB RAM
  • 2.4GHz radio operation
  • Up to 8dBm TX power
  • 3.1mA RX current at 1Mbps GFSK, 3V
  • 4.1mA TX current at 0dBm, 3V
  • 1.8V to 3.8V supply voltage range
  • -40°C to +125°C operating temperature range
  • Two 12-bit ADCs with 1Msps capability
  • Up to 32 GPIOs, depending on device variant
  • Packages
    • 5mm x 5mm x 0.85mm (QFN40)
    • 6mm x 6mm x 0.85mm (QFN48)

Functional Block Diagram

Block Diagram - Silicon Labs BG2B Low-Power BLUETOOTH® LE SoCs
Publicado: 2026-08-06 | Actualizado: 2026-08-18