Specification	EFR32MG21B020F512IM32-BR

Current - Receiving (Max)	9.8 mA
Current - Receiving (Min)	8.8 mA
Current - Transmitting (Max)	185 mA
Current - Transmitting (Min)	9.3 mA
Data Rate (Max)	2 MBaud
Frequency (Max)	2.4835 GHz
Frequency (Min)	2.4 GHz
GPIO Count	20
Memory Size (Flash)	512 kB
Memory Size (RAM)	64 kB
Memory Size (SRAM)	64 kB
Memory Type	RAM, Flash
Modulation	DSSS, O-QPSK, GFSK
Mounting Type	Surface Mount
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package / Case	32-VFQFN Exposed Pad
Package Length	4 mm
Package Name	32-QFN
Package Width	4 mm
Power - Output	20 dBm
Protocol	Zigbee®, Bluetooth v5.1, Thread
RF Family/Standard	802.15.4, Bluetooth
Sensitivity	-104.9 dBm
Serial Interfaces	USART, I2C, I2S, UART, SPI, IrDA
Type	TxRx + MCU
Voltage - Supply (Maximum)	3.8 V
Voltage - Supply (Minimum)	1.71 V

EFR32MG21B020 Series

Part	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Protocol	Operating Temperature (Max)	Operating Temperature (Min)	Current - Transmitting (Max)	Current - Transmitting (Min)	Package / Case	Mounting Type	RF Family/Standard	GPIO Count	Frequency (Max)	Frequency (Min)	Serial Interfaces	Power - Output	Memory Size (Flash)	Memory Type	Memory Size (RAM)	Memory Size (SRAM)	Sensitivity	Type	Current - Receiving (Max)	Current - Receiving (Min)	Modulation	Package Length	Package Name	Package Width	Data Rate (Max)
SILICON LABS EFR32MG21B020F512IM32-B	3.8 V	1.71 V	Bluetooth v5.1 Thread Zigbee®	125 °C	-40 °C	185 mA	9.3 mA	32-VFQFN Exposed Pad	Surface Mount	802.15.4 Bluetooth	20	2.4835 GHz	2.4 GHz	I2C I2S IrDA SPI UART USART	20 dBm	512 kB	Flash RAM	64 kB	64 kB	-104.9 dBm	TxRx + MCU	9.8 mA	8.8 mA	DSSS GFSK O-QPSK	4 mm	32-QFN	4 mm	2 MBaud
SILICON LABS EFR32MG21B020F768IM32-B	3.8 V	1.71 V	Bluetooth v5.1 Thread Zigbee®	125 °C	-40 °C	185 mA	9.3 mA	32-VFQFN Exposed Pad	Surface Mount	802.15.4 Bluetooth	20	2.4835 GHz	2.4 GHz	I2C I2S IrDA SPI UART USART	20 dBm	768 kB	Flash RAM			-104.9 dBm	TxRx + MCU	9.8 mA	8.8 mA	DSSS GFSK O-QPSK	4 mm	32-QFN	4 mm	2 MBaud
SILICON LABS EFR32MG21B020F1024IM32-B	3.8 V	1.71 V	Bluetooth v5.1 Thread Zigbee®	125 °C	-40 °C	185 mA	9.3 mA	32-VFQFN Exposed Pad	Surface Mount	802.15.4 Bluetooth	20	2.4835 GHz	2.4 GHz	I2C I2S IrDA SPI UART USART	20 dBm	1 MB	Flash RAM SRAM	96 kB	96 kB	-104.9 dBm	TxRx + MCU	9.8 mA	8.8 mA	DSSS GFSK O-QPSK	4 mm	32-QFN	4 mm	2 MBaud
SILICON LABS EFR32MG21B020F512IM32-BR	3.8 V	1.71 V	Bluetooth v5.1 Thread Zigbee®	125 °C	-40 °C	185 mA	9.3 mA	32-VFQFN Exposed Pad	Surface Mount	802.15.4 Bluetooth	20	2.4835 GHz	2.4 GHz	I2C I2S IrDA SPI UART USART	20 dBm	512 kB	Flash RAM	64 kB	64 kB	-104.9 dBm	TxRx + MCU	9.8 mA	8.8 mA	DSSS GFSK O-QPSK	4 mm	32-QFN	4 mm	2 MBaud
SILICON LABS EFR32MG21B020F768IM32-BR	3.8 V	1.71 V	Bluetooth v5.1 Thread Zigbee®	125 °C	-40 °C	185 mA	9.3 mA	32-VFQFN Exposed Pad	Surface Mount	802.15.4 Bluetooth	20	2.4835 GHz	2.4 GHz	I2C I2S IrDA SPI UART USART	20 dBm	768 kB	Flash RAM			-104.9 dBm	TxRx + MCU	9.8 mA	8.8 mA	DSSS GFSK O-QPSK	4 mm	32-QFN	4 mm	2 MBaud
SILICON LABS EFR32MG21B020F1024IM32-BR	3.8 V	1.71 V	Bluetooth v5.1 Thread Zigbee®	125 °C	-40 °C	185 mA	9.3 mA	32-VFQFN Exposed Pad	Surface Mount	802.15.4 Bluetooth	20	2.4835 GHz	2.4 GHz	I2C I2S IrDA SPI UART USART	20 dBm	1 MB	Flash RAM SRAM	96 kB	96 kB	-104.9 dBm	TxRx + MCU	9.8 mA	8.8 mA	DSSS GFSK O-QPSK	4 mm	32-QFN	4 mm	2 MBaud

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EFR32MG21B020F512IM32-BR | Datasheet

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