EFR32BG1 Blue Gecko Bluetooth® Smart
SoC Family Data Sheet
The Blue Gecko Bluetooth Smart family of SoCs is part of the
Wireless Gecko portfolio. Blue Gecko SoCs are ideal for enabling
KEY FEATURES
energy-friendly Bluetooth Smart networking for IoT devices.
• 32-bit ARM® Cortex®-M4 core with 40
MHz maximum operating frequency
The single-die solution provides industry-leading energy efficiency, ultra-fast wakeup
times, a scalable power amplifier, an integrated balun and no-compromise MCU fea-
tures.
• Scalable Memory and Radio configuration
options available in several footprint
compatible QFN packages
• 12-channel Peripheral Reflex System
enabling autonomous interaction of MCU
peripherals
Blue Gecko applications include:
• IoT Sensors and End Devices
• Health and Wellness
• Autonomous Hardware Crypto Accelerator
and Random Number Generator
• Home and Building Automation
• Accessories
• Integrated balun for 2.4 GHz and
integrated PA with up to 19.5 dBm
transmit power for 2.4 GHz and 20 dBm
transmit power for Sub-GHz radios
• Human Interface Devices
• Metering
• Integrated DC-DC with RF noise mitigation
• Commercial and Retail Lighting and Sensing
Core / Memory
Clock Management
Energy Management
Other
High Frequency
Crystal
Oscillator
High Frequency
RC Oscillator
Voltage
Regulator
CRYPTO
Voltage Monitor
Power-On Reset
ARM CortexTM M4 processor
Memory
with DSP extensions and FPU
Protection Unit
Auxiliary High
Frequency RC
Oscillator
Low Frequency
RC Oscillator
DC-DC
Converter
CRC
Low Frequency
Crystal
Oscillator
Ultra Low
Frequency RC
Oscillator
Flash Program
RAM Memory
Memory
Brown-Out
Detector
Debug Interface
DMA Controller
32-bit bus
Peripheral Reflex System
Radio Transceiver
Serial
I/O Ports
Timers and Triggers
Analog I/F
Interfaces
External
Interrupts
Sub-GHz RF
Frontend:
LNA, PA,
DEMOD
USART
Timer/Counter
Protocol Timer
ADC
I/Q Mixer
Low Energy
UARTTM
General
Purpose I/O
Low Energy
Timer
Analog
Comparator
IFADC
AGC
PGA
Watchdog Timer
RFSENSE
Real Time
Counter and
Calendar
I2C
Pin Reset
Pulse Counter
IDAC
2.4 GHz RF
Frontend:
LNA, PA,
I/Q Mixer
Frequency
Synthesizer
BALUN
To RF
Frontend
Circuits
MOD
Pin Wakeup
Cryotimer
Lowest power mode with peripheral operational:
EM0—Active EM1—Sleep
EM2—Deep Sleep
EM3—Stop
EM4—Hibernate
EM4—Shutoff
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