EFR32BG22 Wireless Gecko SoC Family
Data Sheet
The EFR32BG22 Wireless Gecko family of SoCs is part of the
Wireless Gecko portfolio. EFR32BG22 Wireless Gecko SoCs are
ideal for enabling energy-friendly Bluetooth 5.2 networking for IoT
devices.
The single-die solution combines a 76.8 MHz Cortex-M33 with a high performance 2.4
GHz radio to provide an industry-leading, energy efficient wireless, SoC for IoT connec-
ted applications.
Wireless Gecko applications include:
KEY FEATURES
• 32-bit ARM® Cortex®-M33 core with 76.8
MHz maximum operating frequency
• Up to 512 kB of flash and 32 kB of RAM
• Energy-efficient radio core with low active
and sleep currents
• Bluetooth 5.2 Direction Finding
• Integrated PA with up to 6 dBm (2.4 GHz)
TX power
• Secure Boot with Root of Trust and
Secure Loader (RTSL)
• Asset Tags and Beacons
• Consumer Electronics Remote Controls
• Portable Medical
• Bluetooth Mesh Low Power Nodes
• Sports, Fitness, and Wellness devices
• Connected Home
• Building Automation and Security
Timers and Triggers
32-bit bus
Peripheral Reflex System
Serial
Interfaces
I/O Ports
Analog I/F
Lowest power mode with peripheral operational:
USART
EUART
External
Interrupts
General
Purpose I/O
Pin Reset
Pin Wakeup
ADC
EM4—Shutoff
Energy Management
Brown-Out
Detector
Voltage
Regulator
Power-On
Reset
SecurityClock Management
HF Crystal
Oscillator
LF Crystal
Oscillator
Precision LF
RC Oscillator
HF
RC Oscillator
Crypto Acceleration
Ultra LF RC
Oscillator
Core / Memory
ARM Cortex
TM
M33 processor
with DSP extensions,
FPU and TrustZone
ETM Debug Interface RAM Memory
LDMA
Controller
Flash Program
Memory
Real Time
Capture Counter
Timer/Counter
Low Energy Timer
Watchdog Timer
Protocol Timer
EM3—StopEM2—Deep SleepEM1—SleepEM0—Active
True Random
Number Generator
Fast Startup
RC Oscillator
Back-Up Real
Time Counter
I
2
C
PDM
DC-DC
Converter
Temperature
Sensor
Radio Subsystem
RFSENSE
w/ OOK Detect
RX/TX Frontend
with Integrated PA
Frequency
Synthesizer
ARM Cortex
TM
M0+ Radio
Controller
CRC
BUFC RAM
FRC
DEMOD
AGC
IFADC
MOD
silabs.com | Building a more connected world. Preliminary Rev. 0.5
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
1. Feature List
The EFR32BG22 highlighted features are listed below.
• Low Power Wireless System-on-Chip
•
High Performance 32-bit 76.8 MHz MHz ARM Cortex
®
-M33
with DSP instruction and floating-point unit for efficient sig-
nal processing
• Up to 512 kB flash program memory
• Up to 32 kB RAM data memory
• 2.4 GHz radio operation
• Radio Performance
• -106.7 dBm sensitivity @ 125 kbps GFSK
• -98.9 dBm sensitivity @ 1 Mbit/s GFSK
• -96.2 dBm sensitivity @ 2 Mbit/s GFSK
• TX power up to 6 dBm
• 2.5 mA radio receive current
• 3.4 mA radio transmit current @ 0 dBm output power
• 7.5 mA radio transmit current @ 6 dBm output power
• Low System Energy Consumption
• 3.6 mA RX current (1 Mbps GFSK)
• 4.1 mA TX current @ 0 dBm output power
• 8.2 mA TX current @ 6 dBm output power
• 27 μA/MHz in Active Mode (EM0) at 76.8 MHz
• 1.40 μA EM2 DeepSleep current (32 kB RAM retention and
RTC running from LFXO)
• 1.75 μA EM2 DeepSleep current (32 kB RAM retention and
RTC running from Precision LFRCO)
• 0.17 μA EM4 current
• Supported Modulation Format
• 2 (G)FSK with fully configurable shaping
• OQPSK DSSS
• (G)MSK
• Protocol Support
• Bluetooth Low Energy (Bluetooth 5.2)
• Direction finding using Angle-of-Arrival (AoA) and Angle-of-
Departure (AoD)
• Proprietary
• Wide selection of MCU peripherals
• 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
• Up to 26 General Purpose I/O pins with output state reten-
tion and asynchronous interrupts
• 8 Channel DMA Controller
• 12 Channel Peripheral Reflex System (PRS)
• 4 × 16-bit Timer/Counter with 3 Compare/Capture/PWM
channels
• 1 × 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/Trans-
mitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I
2
S)
• 1 × Enhanced Universal Asynchronous Receiver/Transmit-
ter (EUART)
•
2 × I
2
C interface with SMBus support
• Digital microphone interface (PDM)
• Precision Low-Frequency RC Oscillator to replace 32 kHz
sleep crystal
• RFSENSE with selective OOK mode
• Die temperature sensor with +/-1.5 degree C accuracy after
single-point calibration
• Wide Operating Range
• 1.71 V to 3.8 V single power supply
• -40 °C to 125 °C
• Security Features
• Secure Boot with Root of Trust and Secure Loader (RTSL)
• Hardware Cryptographic Acceleration for AES128/256,
SHA-1, SHA-2 (up to 256-bit), ECC (up to 256-bit), ECDSA,
and ECDH
• True Random Number Generator (TRNG) compliant with
NIST SP800-90 and AIS-31
•
ARM
®
TrustZone
®
• Secure Debug with lock/unlock
• Packages
• QFN40 5 mm × 5 mm × 0.85 mm
• QFN32 4 mm × 4 mm × 0.85 mm
• TQFN32 4 mm × 4 mm × 0.30 mm
EFR32BG22 Wireless Gecko SoC Family Data Sheet
Feature List
silabs.com | Building a more connected world. Preliminary Rev. 0.5 | 2