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Silicon Labs
EFR32MG21 - Multiprotocol Wireless SoC
EFR32MG21
The Mighty Gecko multiprotocol family of SoCs is part of the Wireless Gecko portfolio. Mighty Gecko SoCs are ideal for enabling energy-friendly multiprotocol, multiband networking for IoT devices.
EFR32MG21 devices bring high performance, low power and secure solutions to the IoT. Designed to increase processing capability, improve RF performance and lower active current, EFR32MG21 devices are 2.4 GHz wireless SoCs optimized for line-powered Zigbee, Thread and Bluetooth mesh applications, including connected lighting, gateways, voice assistants and smart metering.
The EFR32MG21 family of SoCs includes an integrated security subsystem and devices that can take advantage of Secure Vault technologies. Secure Vault delivers leading security software features with physically unclonable function (PUF) hardware technology to greatly reduce the risk of IoT security breaches and compromised intellectual property.
With better than -104 dBm sensitivity for both 802.15.4 and Bluetooth Long Range and up to +20 dBm output power, EFR32MG21 provides a robust RF link to ensure reliable communications. EFR32MG21 uses Simplicity Studio 5 development tools, providing easy migration and fast time-to-market with development kits, SDKs, mobile apps and our patented network analyzer.
EFR32MG21 Common Specs
Zigbee and Thread Radio
Bluetooth® Low Energy Radio
Rich Analog and Digital Peripherals
Powerful MCU & Memory Options
Package Options
MG21 Security Features
* Silicon Labs Authorized Distributor
The EFR32MG21 family of SoCs includes an integrated security subsystem and devices that can take advantage of Secure Vault technologies. Secure Vault delivers leading security software features with physically unclonable function (PUF) hardware technology to greatly reduce the risk of IoT security breaches and compromised intellectual property.
With better than -104 dBm sensitivity for both 802.15.4 and Bluetooth Long Range and up to +20 dBm output power, EFR32MG21 provides a robust RF link to ensure reliable communications. EFR32MG21 uses Simplicity Studio 5 development tools, providing easy migration and fast time-to-market with development kits, SDKs, mobile apps and our patented network analyzer.
EFR32MG21 Common Specs
- 2.4 GHz IEEE 802.15.4
- 250 kbps O-QPSK DSSS
- Excellent Receive Sensitivity:
- -104.5 dBm @250 kbps O-QPSK DSSS
- Programmable Output Power: +20 dBm
- Active Mode RX: 9.4 mA
- Active Mode TX: 9.3 mA @ 0 dBm
- Active Mode TX: 33.8 mA @ 10 dBm
Bluetooth® Low Energy Radio
- Compatible with Bluetooth 5, Bluetooth 5.1 and Bluetooth mesh specification
- Excellent Receive Sensitivity:
- -104.9 dBm @ 125 kbps GFSK
- -97.5 dBm @1 Mbps GFSK
- -94.4 dBm @2 Mbps GFSK
- Programmable Output Power: Up to +20 dBm
- Active Mode RX: 8.8 mA
- Active Mode TX: 9.3 mA @ 0 dBm
- Active Mode TX: 33.8 mA @10 dBm
Rich Analog and Digital Peripherals
- 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
- Analog Comparators (ACMP)
- 8 Channel DMA Controller
- Peripheral Reflex System (PRS)
- PTA (Packet Traffic Arbitration) for Wi-Fi Coexistence
- 16-bit Timer/Counters
- 3 Compare/Capture/PWM channels per Timer
- 32-bit Timer/Counter
- 3 Compare/Capture/PWM channels per Timer
- 32-bit Real Time Counter
- 24-bit Low Energy Timer for waveform generation
- Watchdog Timers
- Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard(ISO 7816)/IrDA/I2S)
- 2C interface with SMBus support
- Up to 20 General Purpose I/O pins
- Output state retention and asynchronous interrupts
Powerful MCU & Memory Options
- ARM® Cortex®-M33
- DSP and Floating Point Unit
- Up to 80 MHz Clock Speed
- Low Active Mode Current: 50.9 µA/MHz
- Up to 1024 kB of Programmable Flash
- Up to 96 kB RAM
Package Options
- QFN32 (4 mm x 4 mm)
MG21 Security Features
- Secure Attestation
- Secure Key Management
- Secure Key Storage
- Anti-Tamper
* Silicon Labs Authorized Distributor
