EFR32BG2B Common Specs
Low-Power Wireless System-on-Chip
- High-performance 32-bit 80 MHz ARM Cortex®-M33 with DSP instruction and floating-point unit for efficient signal processing
- Up to 1016 kB Flash program memory
- Up to 128 kB RAM data memory
- 2.4 GHz radio operation
Radio Performance
- -102.1 dBm sensitivity @ 250 kbps O-QPSK DSSS
- -106.8 dBm sensitivity @ 125 kbps GFSK
- -99.0 dBm sensitivity @ 1 Mbps GFSK
- -96.1 dBm sensitivity @ 2 Mbps GFSK
- TX power up to +8 dBm
Low System Energy Consumption
- 3.1 mA RX current (1 Mbps GFSK)
- 4.1 mA TX current @ 0 dBm output power
- 11.06 mA TX current @ +8 dBm output power
- 23 μA/MHz in Active Mode (EM0) at 80 MHz
- 1.5 μA EM2 DeepSleep current (128 kB RAM retention and RTC running from LFXO)
- 1.1 μA EM2 DeepSleep current (16 kB RAM retention and RTC running from LFXO)
- 0.17 μA EM4 current
Wide Selection of MCU Peripherals
- 2 x 12-bit Analog-to-Digital Converter (ADC)
- 12-bit @ 1 Msps
- Analog Comparator (ACMP)
- Up to 32 General Purpose I/O pins with output state retention and asynchronous interrupts
- 8 Channel DMA Controller
- 20 Channel Peripheral Reflex System (PRS)
- 3 × 16-bit Timer/Counter with 3 Compare/Capture/PWM channels
- 2 × 32-bit Timer/Counter with 3 Compare/Capture/PWM channels
- 32-bit Real Time Counter
- 24-bit Low-Energy Timer for waveform generation
- 1 × Watchdog Timer
- 2 × Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I2S)
- 1 × Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART/SPI)
- 2 × I2C interface with SMBus support
- 1 x Digital microphone interface (PDM)
- 1 x Controller Area Network with Flexible Data-Rate (CAN FD)
- Precision Low-Frequency RC Oscillator to replace 32 kHz sleep crystal
- RFSENSE with selective OOK mode
- Die temperature sensor with typical +/- 1.5 °C accuracy after single-point calibration
- 2 x Variable Resistive Load (VRL), switchable load on VREGVDD for measuring battery internal resistance and estimating remaining battery capacity
- 4 x adjustable constant-current LED sinks with built-in blink pattern generator and PWM brightness control
Supported Modulation Format
- OQPSK DSSS
- 2 (G)FSK with fully configurable shaping
- (G)MSK
Protocol Support
- Bluetooth® Low Energy 6
- Channel Sounding
- Proprietary
Wide Operation Range
- 1.8 to 3.8 V supply range
- -40 to +125 °C
Packages
- QFN40 5 mm × 5 mm × 0.85 mm, 0.4 mm pitch
- QFN48 6 mm x 6 mm x 0.85 mm, 0.4 mm pitch
Secure Vault™ High
- Hardware Cryptographic Acceleration for AES128/192/256, ChaCha20-Poly1305, SHA-1, SHA-2/256/384/512, ECDSA+ECDH(P-192, P-256, P-384, P-521), Ed25519 and Curve25519, J-PAKE, PBKDF2
- True Random Number Generator (TRNG)
- ARM® TrustZone®
- Secure Boot (Root of Trust Secure Loader)
- Secure Debug Unlock
- DPA Countermeasures
- Secure Key Management with PUF
- Anti-Tamper
- Secure Attestation
- Designed for PSA level 3 certification