Silicon Labs EFR32BG21B020F512IM32-B 蓝牙 Blue Gecko，QFN32，2.4G，20dB，蓝牙 5.1，512kB，64kB（RAM），20 GPIO

Core: ARM Cortex M33

Width: 4 mm

Length: 4 mm

Technology: Si

Sensitivity: - 94.4 dBm

Output Power: 20 dBm

Data RAM Size: 64 kB

Data RAM Type: RAM

ADC Resolution: 12 bit

Data Bus Width: 32 bit

Interface Type: I2C, USART

Mounting Style: SMD/SMT

Number of I/Os: 20 I/O

Number of Timers: 3 Timer

Processor Series: EFR32BG21

Maximum Data Rate: 2 Mbps

Moisture Sensitive: Yes

Operating Frequency: 2.4 GHz

Program Memory Size: 512 kB

Program Memory Type: Flash

Supply Voltage - Max: 3.8 V

Supply Voltage - Min: 1.71 V

Maximum Clock Frequency: 80 MHz

Supply Current Receiving: 8.8 mA

Supply Current Transmitting: 33.8 mA

Maximum Operating Temperature: + 125 C

Minimum Operating Temperature: - 40 C