EFR32MG22 Series 2 Zigbee SoC (system-on-chip)

EFR32MG22 (MG22) Zigbee SoC (system-on-chip) solutions are part of the Wireless Gecko Series 2 platform. The MG22 family offers an optimized Zigbee SoC solutions incorporating a high-performance, low-power 76.8 MHz Arm® Cortex®-M33 core with TrustZone. The MG22 SoCs’ combination of ultra-low transmit and receive power (8.2 mA TX at +6 dBm, 3.9 mA RX), 1.4 µA deep-sleep mode power and low-power peripherals delivers an industry-leading, energy-efficient solution for applications using the Zigbee protocol including Green Power. IoT applications include smart home sensors, lighting controls, and building and industrial automation.

Building automation, lighting controls and sensors
Ideal for Zigbee Green Power devices

EFR32MG22 Common Specs

Low Power Wireless System-on-Chip

  • High Performance 32-bit 76.8 MHz ARM Cortex®-M33 with DSP instruction and floating-point unit for efficient signal processing
  • Up to 512 kB flash program memory
  • Up to 32 kB RAM data memory
  • 2.4 GHz radio operation

Radio Performance

  • -102.3 dBm sensitivity @ 250 kbps GFSK
  • -106.7 dBm sensitivity @125 kbps GFSK
  • -98.9 dBm sensitivity @ 1 Mbit/s GFSK
  • -96.2 dBm sensitivity @ 2 Mbit/s GFSK
  • TX power up to 6 dBm
  • 2.5 mA radio receive current
  • 3.4 mA radio transmit current @ 0 dBm output power
  • 7.5 mA radio transmit current @ 6 dBm output power

Low System Energy Consumption

  • 3.6 mA RX current (1 Mbps GFSK)
  • 3.9 mA RX current (250 kbps O-QPSK DSSS)
  • 4.1 mA TX current @ 0 dBm output power
  • 8.2 mA TX current @ 6 dBm output power
  • 26 μA/MHz in Active Mode (EM0) at 38.4 MHz
  • 1.40 μA EM2 DeepSleep current (32 kB RAM retention and RTC running from LFRCO)
  • 0.17 μA EM4 current

Wide Selection of MCU Peripherals

  • 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
  • Up to 26 General Purpose I/O pins with output state retention and asynchronous interrupts
  • 8 Channel DMA Controller
  • 12 Channel Peripheral Reflex System (PRS)
  • 4 × 16-bit Timer/Counter with 3 Compare/Capture/PWM channels
  • 1 × 32-bit Timer/Counter with 3 Compare/Capture/PWM channels
  • 32-bit Real Time Counter
  • 24-bit Low Energy Timer for waveform generation
  • 1 × Watchdog Timer
  • 2 × Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I2S)
  • 1 × Enhanced Universal Asynchronous Receiver/Transmitter (EUART)
  • 2 × I2C interface with SMBus support
  • Digital microphone interface (PDM)
  • Precision Low-Frequency RC Oscillator to replace 32 kHz sleep crystal
  • RFSENSE with selective OOK mode
  • Die temperature sensor with +/-1.5 °C
    accuracy after single-point calibration

Supported Modulation Format

  • 2 (G)FSK with fully configurable shaping
  • OQPSK DSSS
  • (G)MSK

Protocol Support

  • Bluetooth Low Energy (Bluetooth 5.2)
  • Direction finding using Angle-of-Arrival (AoA) and Angle-of-Departure (AoD)
  • Zigbee PRO/Green Power
  • Proprietary

Wide Operation Range

  • 1.71 V to 3.8 V single power supply
  • -40 °C to 125 °C

Packages

  • QFN40 5 mm × 5 mm × 0.85 mm
  • QFN32 4 mm × 4 mm × 0.85 mm
  • TQFN32 4 mm × 4 mm × 0.30 mm

Securing Your Zigbee Product

IoT security is key to protecting company brands, end user privacy and commercial viability of products. Vulnerabilities can be exploited through both remote Internet attacks and physical hands-on-attacks.

Developers using the Silicon Labs wireless product portfolio including those in the EFR32MG22 portfolio have access to a number of technologies designed to protect their product, including Secure Debug, Secure Boot with Root of Trust & Secure Loader.

MG22 Security Features

  • Secure Boot with Root of Trust and Secure Loader (RTSL)
  • Hardware Cryptographic Acceleration for AES128/256, SHA-1, SHA-2 (up to 256-bit), ECC (up to 256-bit), ECDSA,and ECDH
  • True Random Number Generator (TRNG) compliant with NIST SP800-90 and AIS-31
  • ARM® TrustZone®
  • Secure Debug with lock/unlock
Find the Right EFR32MG22 Device Select Columns
Select Columns
Part Number MCU Core Frequency (MHz) Flash RAM Cryptography Output Power Range (dBm) Receive Sensitivity GPIO RX Current (mA) UART USART LEUART I²C SPI I²S ADC Comparators Timers (16-bit) Temperature Range ºC Package Type Package Size (mm) Wireless Standards Multiprotocol
ARM Cortex-M33 76.8 512 32 AES-128 AES-256 ECC SHA-1 SHA-2 -28 6 -102.1 (250 kbit/s OQPSK) 18 3.6 3 2 0 2 2 2 12-bit, SAR, 1 Msps 4 -40 85 QFN32 4x4 Zigbee Bluetooth Switched Programmable
ARM Cortex-M33 76.8 512 32 AES-128 AES-256 ECC SHA-1 SHA-2 -28 6 -102.1 (250 kbit/s OQPSK) 18 3.6 3 2 0 2 2 2 12-bit, SAR, 1 Msps 4 -40 125 QFN32 4x4 Zigbee Bluetooth Switched Programmable
ARM Cortex-M33 76.8 512 32 AES-128 AES-256 ECC SHA-1 SHA-2 -28 6 -102.1 (250 kbit/s OQPSK) 26 3.6 3 2 0 2 2 2 12-bit, SAR, 1 Msps 4 -40 125 QFN40 5x5 Zigbee Bluetooth Switched Programmable

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Enable Eco-Friendly Products with MG22

Our new MG22 SoC is optimized for Zigbee Green Power energy harvesting applications, providing a best-in-class connectivity solution for power-sensitive wireless applications. Ross Sabolcik, our VP & GM of Industrial & Commercial IoT Products, shares what's interesting about the MG22 and details performance and security features.

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