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EFR32BG12 Datasheet, PDF (1/181 Pages) –
EFR32BG12 Blue Gecko Bluetooth ®Low
Energy SoC Family Data Sheet
The Blue Gecko Bluetooth Low Energy family of SoCs is part of
the Wireless Gecko portfolio. Blue Gecko SoCs are ideal for ena-
bling energy-friendly Bluetooth 5 networking for IoT devices.
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.
Blue Gecko applications include:
• IoT Sensors and End Devices
• Health and Wellness
• Home and Building Automation
• Accessories
• Human Interface Devices
• Metering
• Commercial and Retail Lighting and Sensing
KEY FEATURES
• 32-bit ARM® Cortex®-M4 core with 40
MHz maximum operating frequency
• Up to 1 MB of flash and 256 kB of RAM
• Pin-compatible with EFR32BG1 QFN48
devices (exceptions apply for 5V-tolerant
pins)
• 12-channel Peripheral Reflex System,
Low-Energy Sensor Interface & Multi-
channel Capacitive Sense Interface
• Autonomous Hardware Crypto Accelerator
and True Random Number Generator
• Integrated PA with up to 19 dBm transmit
power for 2.4 GHz and 20 dBm for Sub-
GHz radios
• Integrated balun for 2.4 GHz
• Robust peripheral set and up to 65 GPIO
Core / Memory
ARM CortexTM M4 processor
with DSP extensions and FPU
Memory
Protection Unit
Flash Program
Memory
RAM Memory
Debug Interface
with ETM
LDMA
Controller
Clock Management
High Frequency
Crystal
Oscillator
Low Frequency
RC Oscillator
Low Frequency
Crystal
Oscillator
High Frequency
RC Oscillator
Auxiliary High
Frequency RC
Oscillator
Ultra Low
Frequency RC
Oscillator
32-bit bus
Peripheral Reflex System
RFSENSE
RFSENSE
BALUN
Radio Transceiver
Sub GHz
LNA
I
RF Frontend
PA
Q
2.4 GHz
LNA
I
RF Frontend
PA
Q
PGA
To Sub GHz
receive I/Q
mixers and PA
Frequency
Synthesizer
To 2.4 GHz receive
I/Q mixers and PA
DEMOD
IFADC
AGC
MOD
To Sub GHz
and 2.4 GHz PA
Serial
Interfaces
USART
Low Energy
UARTTM
I2C
Lowest power mode with peripheral operational:
EM0—Active
EM1—Sleep
EM2—Deep Sleep
I/O Ports
External
Interrupts
General
Purpose I/O
Pin Reset
Pin Wakeup
EM3—Stop
Energy Management
Voltage
Regulator
Voltage Monitor
DC-DC
Converter
Power-On Reset
Brown-Out
Detector
Other
CRYPTO
CRC
True Random
Number Generator
SMU
Timers and Triggers
Timer/Counter
Low Energy
Timer
Pulse Counter
Low Energy
Sensor Interface
Protocol Timer
Watchdog Timer
Real Time
Counter and
Calendar
Cryotimer
Analog I/F
ADC
Analog
Comparator
IDAC
Capacitive Sense
VDAC
Op-Amp
EM4—Hibernate
EM4—Shutoff
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