Silicon Labs
Bluetooth Wireless SoC
EFR32BGBringing high performance, low power and secure solutions to the Internet of Things
Wireless Gecko Series 2 devices are the next evolution of Wireless Gecko devices that are designed to increase processing capability, improve RF performance and lower active current, while providing a higher level of security.
The first family of devices in Series 2 are EFR32BG21, a 2.4 GHz wireless SOC optimized for line-powered BLE and Bluetooth mesh applications, including connected lighting, smart plugs, gateways and voice assistants. An 80 MHz ARM® Cortex®-M33 core provides plenty of processing capability while a dedicated security core that provides faster encryption, secure boot loading, and debug access control. With better than -104 sensitivity for Bluetooth Long Range and up to +20 dBm output power, the EFR32BG21 provides a robust RF link to ensure reliable communications. And finally the Series 2 uses the same tools as Series 1, providing easy migration and fast time-to-market with development kits, SDKs, mobile apps, and Silicon Labs patented network analyzer.
Module Specifications
Bluetooth Low Energy Radio
Rich Analog and Digital Peripherals
Powerful MCU & Memory Options
Package Options
Security
*Silicon Labs Authorized Distributor
The first family of devices in Series 2 are EFR32BG21, a 2.4 GHz wireless SOC optimized for line-powered BLE and Bluetooth mesh applications, including connected lighting, smart plugs, gateways and voice assistants. An 80 MHz ARM® Cortex®-M33 core provides plenty of processing capability while a dedicated security core that provides faster encryption, secure boot loading, and debug access control. With better than -104 sensitivity for Bluetooth Long Range and up to +20 dBm output power, the EFR32BG21 provides a robust RF link to ensure reliable communications. And finally the Series 2 uses the same tools as Series 1, providing easy migration and fast time-to-market with development kits, SDKs, mobile apps, and Silicon Labs patented network analyzer.
Module Specifications
Bluetooth Low Energy Radio
- Compatible With Bluetooth 5, Bluetooth 5.1 and Bluetooth mesh specification
- Excellent Receive Sensitivity:
- 105.1 dBm @ 125 kbps GFSK to -104.9 dBm @125 kbps GFSK
- 97.5 dBm @1 Mbps GFSK
- 94.4 dBm @2 Mbps GFSK
- Programmable Output Power: Up to +20 dBm
- Active Mode RX: 8.8 mA
- Active Mode TX: 10.5 mA @ 0 dBm to Active Mode TX: 9.8 mA @0 dBm
- Active Mode TX: 33.1 mA @ 10 dBm to Active Mode TX: 33.8 mA @ 10 dBm
Rich Analog and Digital Peripherals
- 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
- Analog Comparators (ACMP)
- 8 Channel DMA Controller
- Peripheral Reflex System (PRS)
- PTA (Packet Traffic Arbitration) for Wi-Fi Coexistence
- 16-bit Timer/Counters
- 3 Compare/Capture/PWM channels per Timer
- 32-bit Timer/Counter
- 3 Compare/Capture/PWM channels per Timer
- 32-bit Real Time Counter
- 24-bit Low Energy Timer for waveform generation
- Watchdog Timers
- Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard(ISO 7816)/IrDA/I2S)
- I2C interface with SMBus support
- Up to 20 General Purpose I/O pins
- Output state retention and asynchronous interrupts
Powerful MCU & Memory Options
- ARM® Cortex®-M33
- Floating Point Unit
- Up to 80 MHz Clock Speed
- Low Active Mode Current: 50.9 µA/MHz
- Up to 1024 kB of Programmable Flash
- Up to 96 kB SRAM
Package Options
- QFN32 (4 mm x 4 mm)
Security
- Hardware Cryptographic Acceleration
- AES (128/192/256), SHA-1, SHA-2 (SHA-224/SHA256), ECC (256-bit), ECDSA (256-bit) and ECDH (p192, p256), HMAC, J-PAKE
- True Random Number Generator (TRNG)
- Secure Boot
- Secure Debug / Debug Access Control
- Unique ID
*Silicon Labs Authorized Distributor