Silicon Labs EFR32MG21 Mighty Gecko Series 2 Wireless SoCs
Silicon Labs EFR32MG21 Mighty Gecko Series 2 Multiprotocol Wireless SoCs offers an 80MHz ARM Cortex-M33 core with a dedicated security core provides faster encryption, secure boot loading, and debug access control. The EFR32MG21 are designed to increase processing capability, improve RF performance and lower active current, while providing a higher level of security.
Features
Low Power Wireless System-on-ChipHigh Performance 32-bit 80 MHz ARM Cortex®-M33 with DSP instruction and floating-point unit for efficient signal processingUp to 1024kB flash program memoryUp to 96kB RAM data memory2.4 GHz radio operationTX power up to 20dBmLow Energy Consumption
8.8mA RX current at 2.4GHz (1Mbps GFSK)9.4mA RX current at 2.4GHz (250kbps O-QPSK DSSS)9.3mA TX current @ 0dBm output power at 2.4GHz33.8mA TX current @ 10dBm output power at 2.4GHz50.9μA/MHz in Active Mode (EM0)5.0μA EM2 DeepSleep current (96kB RAM retention and RTC running from LFXO)4.5μA EM2 DeepSleep current (16 kB RAM retention and RTC running from LFRCO)High Receiver Performance
-104.5dBm sensitivity @ 250kbps O-QPSK DSSS-97.5dBm sensitivity @ 1Mbit/s GFSK-94.4dBm sensitivity @ 2Mbit/s GFSK-104.9dBm sensitivity @ 125kbps GFSKSupported Modulation Formats
GFSKOQPSKProtocol Support
Bluetooth Low Energy (Bluetooth 5)ZigbeeThread
8.8mA RX current at 2.4GHz (1Mbps GFSK)9.4mA RX current at 2.4GHz (250kbps O-QPSK DSSS)9.3mA TX current @ 0dBm output power at 2.4GHz33.8mA TX current @ 10dBm output power at 2.4GHz50.9μA/MHz in Active Mode (EM0)5.0μA EM2 DeepSleep current (96kB RAM retention and RTC running from LFXO)4.5μA EM2 DeepSleep current (16 kB RAM retention and RTC running from LFRCO)High Receiver Performance
-104.5dBm sensitivity @ 250kbps O-QPSK DSSS-97.5dBm sensitivity @ 1Mbit/s GFSK-94.4dBm sensitivity @ 2Mbit/s GFSK-104.9dBm sensitivity @ 125kbps GFSKSupported Modulation Formats
GFSKOQPSKProtocol Support
Bluetooth Low Energy (Bluetooth 5)ZigbeeThread
Applications
IoT Multi-Protocol DevicesLightingConnected Home
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