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Silicon Labs EFR32MG29 Series 2 Multiprotocol Wireless SoCs

Silicon Labs EFR32MG29 Series 2 Multiprotocol Wireless SoCs are ideal for battery-powered Internet of Things (IoT) end devices. With support for both buck and boost DC-DC, the Silicon Labs EFR32MG29 can provide the ultimate battery flexibility. Buck DC-DC is ideal for devices that run on batteries with a voltage range from 1.8V to 3.8V, such as coin cells and dual alkaline cells. The boost DC-DC operates from 1.2V to 1.7V and is ideal where smaller form-factor or lower-cost batteries, such as button cells or single alkaline cells, are required.

These tri-core devices feature an Arm® Cortex®-M33 running up to 76.8MHz and dedicated cores for the radio and security, offloading timing-critical operations. With key features like high-performance 2.4GHz RF, low current consumption, and Secure Vault™ High, IoT device makers can create smart, robust, and energy-efficient products that are secure from remote and local cyberattacks. In addition, 1024KB of flash and 256KB of RAM ensure there is enough memory for Zigbee and multiprotocol applications.

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
    • -102.2dBm sensitivity at 250kbps O-QPSK DSSS
    • -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
    • 4.1mA RX current (250kbps O-QPSK DSSS)
    • 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
    • Zigbee PRO / Green Power
    • BLUETOOTH® Low Energy (LE)
    • 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
  • QFN40 package, 5mm x 5mm x 0.85mm with a 0.4mm pitch

Applications

  • Smart homes
  • Building automation
  • Security systems
  • 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 EFR32MG29 Series 2 Multiprotocol Wireless SoCs

Development Tools

Silicon Labs Schede di sviluppo ERF32BG29 & ERF32MG29

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

Learn MoreInformazioni su Silicon Labs Schede di sviluppo ERF32BG29 & ERF32MG29 View ProductsCorrelato a Silicon Labs Schede di sviluppo ERF32BG29 & ERF32MG29

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Pubblicato: 2025-07-21 | Aggiornato: 2025-10-22