EFR32BG21A010F512IM32 Bluetooth 5.1 and Bluetooth Mesh EFR32BG21 Series 2 Wireless SoC

The EFR32BG21A010F512IM32 EFR32BG21 Series 2 wirelss SoC includes a 80 MHz ARM Cortex-M33 core, providing plenty of processing capability while a dedicated security core provides fast encryption, secure boot loading, and a debug access control. This device includes 512 kB of flash, 64 kB of RAM, and is available in a QFN32 package. With up to 10 dBm maximum power output and an excellent receive sensitivity of -97 (1 Mbit/s GFSK) dBm the EFR32BG21A010F512IM32 provides a robust RF link for reliable communications for Bluetooth 5.1 and Bluetooth mesh applications. The EFR32BG21A010F512IM32 uses the same tools as EFR32BG Series 1, providing easy migration and fast time-to-market with development kits, SDKs, mobile apps, and Silicon Labs patented network analyzer.

View Datasheet for all specifications
Specifications Summary

MCU Core: ARM Cortex-M33

Core Frequency (MHz): 80

Flash (kB): 512

RAM (kB): 64

TX Output Power (dBm): 10

Receive Sensitivity: -97 (1 Mbit/s GFSK)

GPIO: 20



I²C: 2

ADC: 12-bit, SAR, 1 Msps

Package: QFN32

Development Tools Type
SLWSTK6006A EFR32xG21 Wireless Gecko Starter Kit Starter Kits

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