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
- 16-bit 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)
- Bluetooth Mesh Low Power Node (512 kB parts only)
- 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
| 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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EFR32xG22 Wireless Gecko Starter Kit
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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.