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Silicon Labs EFR32BG29 Series 2 BLUETOOTH® Wireless SoCs

Silicon Labs EFR32BG29 Series 2 BLUETOOTH® Wireless SoCs are advanced, ultra-low-power solutions designed for high-performance wireless applications, particularly in the Internet of Things (IoT), smart homes, and medical devices. The Silicon Labs EFR32BG29 SoCs integrate a powerful 76.8MHz Arm® Cortex®-M33 core, offering ample processing power for complex applications while maintaining energy efficiency. With support for Bluetooth Low Energy (BLE) 5.4, including features like LE Audio, Periodic Advertising with Responses (PAwR), and Direction Finding, the EFR32BG29 series enables robust, low-latency wireless communication.

EFR32BG29 also includes a high-performance +20dBm power amplifier, a low-noise amplifier (LNA), and a 2.4GHz radio with excellent sensitivity, making it ideal for long-range and reliable connectivity. Enhanced security features, including Secure Boot with Root of Trust and Secure Debug, ensure device integrity in connected environments. A compact footprint and rich peripheral set make these devices a versatile choice for developers building next-generation Bluetooth-enabled products.

Features

  • Low-power wireless system-on-chip
    • High-performance 32-bit, 76.8MHz Arm Cortex-M33 core with DSP instruction and floating-point unit for efficient signal processing
    • 1024KB of flash program memory
    • 256KB of RAM data memory
    • 2.4GHz radio operation
  • Radio performance
    • -106.8dBm sensitivity at 125kbps GFSK
    • -99dBm sensitivity at 1Mbit/s GFSK
    • -96.1dBm sensitivity at 2Mbit/s GFSK
    • Up to 8dBm TX power
  • Low system energy consumption
    • 3.6mA RX current (1Mbps GFSK)
    • 4mA TX current at 0dBm output power
    • 9mA TX current at 6dBm output power
    • 11mA TX current at 8dBm output power
    • 30μA/MHz in Active Mode (EM0) at 76.8MHz
    • 3.4μA EM2 DeepSleep current (256KB RAM retention and RTC running from LFXO)
    • 1.5μA EM2 DeepSleep current (16KB RAM retention and RTC running from LFXO)
    • 0.16μA EM4 current
  • Supported modulation format
    • OQPSK DSSS
    • 2x (G)FSK with fully configurable shaping
    • (G)MSK
  • Secure Vault™ High
    • Hardware cryptographic acceleration for AES128/192/256, ChaCha20-Poly1305, SHA-1, SHA-2/256/384/512, ECDSA+ECDH(P-192, P-256, P-384, P-521), Ed25519 and Curve25519, J-PAKE, and PBKDF2
    • True Random Number Generator (TRNG)
    • Arm TrustZone®
    • Secure boot (root of trust secure loader)
    • Secure debug unlock
    • DPA countermeasures
    • Secure key management with PUF
    • Anti-tamper
    • Secure attestation
  • Protocol support
    • Bluetooth Low Energy (BLE)
    • Proprietary
  • Wide selection of MCU peripherals
    • Analog-to-Digital Converter (ADC)
      • 12-bit at 1Msps
      • 16-bit at 76.9ksps
    • Analog Comparator (ACMP)
    • Up to 26x general-purpose I/O pins with output state retention and asynchronous interrupts
    • 8-channel DMA controller
    • 12-channel Peripheral Reflex System (PRS)
    • 2x 32-bit timer/counter with 3x compare/capture/PWM channels
    • 3x 16-bit timer/counter with 3x compare/capture/PWM channels
    • 32-bit real-time counter
    • 24-bit low-energy timer for waveform generation
    • 1x watchdog timer
    • 2x universal synchronous/asynchronous receiver/transmitter [UART/SPI/SmartCard (ISO 7816)/IrDA/I2S]
    • 2x enhanced universal synchronous/asynchronous receiver/transmitter (UART/SPI)
    • 2x I2C interface with SMBus support
    • Digital microphone interface (PDM)
    • Precision low-frequency RC oscillator to replace 32kHz sleep crystal
    • RFSENSE with selective OOK mode
    • Die temperature sensor with ±1.5°C accuracy after single-point calibration
    • Coulomb counter integrated into buck DC-DC
  • Wide operating range
    • Devices with buck DC-DC
      • 1.8V to 3.8V supply range
      • -40°C to 125°C operating temperature range
    • Devices with boost DC-DC
      • 1.2V to 1.7V supply range
      • -20°C to +55°C operating temperature range
  • Package options
    • QFN40, 5mm x 5mm x 0.85mm with a 0.4mm pitch
    • WLCSP45, 2.825mm x 2.657mm x 0.5mm with a 0.35mm pitch (boost DC-DC configuration)

Applications

  • Portable medical
  • Home end devices
  • Fleet/asset monitoring
  • Industrial automation
  • Access control
  • Bluetooth mesh
  • Sports, fitness, and wellness devices
  • Power tools

Block Diagram

Block Diagram - Silicon Labs EFR32BG29 Series 2 BLUETOOTH® Wireless SoCs

Development Tools

Silicon Labs Bảng mạch phát triển ERF32BG29 & ERF32MG29

Helps developers profile energy usage, debug applications, and analyze wireless network behavior.

Learn MoreGiới thiệu về Silicon Labs Bảng mạch phát triển ERF32BG29 & ERF32MG29 View Productsliên quan đến Silicon Labs Bảng mạch phát triển ERF32BG29 & ERF32MG29

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Silicon Labs SoC không dây đa giao thức EFR32MG29 Series 2

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Learn MoreGiới thiệu về Silicon Labs SoC không dây đa giao thức EFR32MG29 Series 2 View Productsliên quan đến Silicon Labs SoC không dây đa giao thức EFR32MG29 Series 2
Đã phát hành: 2025-07-21 | Đã cập nhật: 2025-08-20