Specification	EFR32BG21B010F1024IM32-B

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)	1 MB
Memory Size (RAM)	96 kB
Memory Size (SRAM)	96 kB
Memory Type	RAM, Flash, SRAM
Modulation	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	10 dBm
Protocol	Bluetooth v5.1
RF Family/Standard	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

EFR32BG21B010 Series

Part	Serial Interfaces	Current - Receiving (Max)	Current - Receiving (Min)	Frequency (Max)	Frequency (Min)	Sensitivity	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package Length	Package Name	Package Width	Memory Size (SRAM)	Memory Type	Memory Size (RAM)	Memory Size (Flash)	Power - Output	Type	Modulation	Data Rate (Max)	Current - Transmitting (Max)	Current - Transmitting (Min)	Package / Case	Operating Temperature (Max)	Operating Temperature (Min)	Mounting Type	Protocol	RF Family/Standard	GPIO Count
SILICON LABS EFR32BG21B010F1024IM32-B	I2C I2S IrDA SPI UART USART	9.8 mA	8.8 mA	2.4835 GHz	2.4 GHz	-104.9 dBm	3.8 V	1.71 V	4 mm	32-QFN	4 mm	96 kB	Flash RAM SRAM	96 kB	1 MB	10 dBm	TxRx + MCU	GFSK	2 MBaud	185 mA	9.3 mA	32-VFQFN Exposed Pad	125 °C	-40 °C	Surface Mount	Bluetooth v5.1	Bluetooth	20
SILICON LABS EFR32BG21B010F768IM32-B	I2C I2S IrDA SPI UART USART	9.8 mA	8.8 mA	2.4835 GHz	2.4 GHz	-104.9 dBm	3.8 V	1.71 V	4 mm	32-QFN	4 mm		Flash RAM		768 kB	10 dBm	TxRx + MCU	GFSK	2 MBaud	185 mA	9.3 mA	32-VFQFN Exposed Pad	125 °C	-40 °C	Surface Mount	Bluetooth v5.1	Bluetooth	20
SILICON LABS EFR32BG21B010F768IM32-BR	I2C I2S IrDA SPI UART USART	9.8 mA	8.8 mA	2.4835 GHz	2.4 GHz	-104.9 dBm	3.8 V	1.71 V	4 mm	32-QFN	4 mm		Flash RAM		768 kB	10 dBm	TxRx + MCU	GFSK	2 MBaud	185 mA	9.3 mA	32-VFQFN Exposed Pad	125 °C	-40 °C	Surface Mount	Bluetooth v5.1	Bluetooth	20
SILICON LABS EFR32BG21B010F512IM32-B	I2C I2S IrDA SPI UART USART	9.8 mA	8.8 mA	2.4835 GHz	2.4 GHz	-104.9 dBm	3.8 V	1.71 V	4 mm	32-QFN	4 mm	64 kB	Flash RAM	64 kB	512 kB	10 dBm	TxRx + MCU	GFSK	2 MBaud	185 mA	9.3 mA	32-VFQFN Exposed Pad	125 °C	-40 °C	Surface Mount	Bluetooth v5.1	Bluetooth	20
SILICON LABS EFR32BG21B010F512IM32-BR	I2C I2S IrDA SPI UART USART	9.8 mA	8.8 mA	2.4835 GHz	2.4 GHz	-104.9 dBm	3.8 V	1.71 V	4 mm	32-QFN	4 mm	64 kB	Flash RAM	64 kB	512 kB	10 dBm	TxRx + MCU	GFSK	2 MBaud	185 mA	9.3 mA	32-VFQFN Exposed Pad	125 °C	-40 °C	Surface Mount	Bluetooth v5.1	Bluetooth	20

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EFR32BG21B010F1024IM32-B | Datasheet

Datasheet

A-00000447 Security Advisory