EFR32MG12 Mighty Gecko Multi-Protocol
Wireless SoC Family Data Sheet
The Mighty Gecko multi-protocol family of SoCs is part of the
Wireless Gecko portfolio. Mighty Gecko SoCs are ideal for ena-
KEY FEATURES
bling energy-friendly multi-protocol, multi-band networking for IoT
devices.
• 32-bit ARM® Cortex®-M4 core with 40
MHz maximum operating frequency
• Up to 1 MB of flash and 256 kB of RAM
The single-die solution provides industry-leading energy efficiency, ultra-fast wakeup
times, a scalable power amplifier, and no-compromise MCU features.
• Pin-compatible with EFR32MG1 QFN48
devices (exceptions apply for 5V-tolerant
pins)
Mighty Gecko applications include:
• 12-channel Peripheral Reflex System,
Low-Energy Sensor Interface & Multi-
channel Capacitive Sense Interface
• IoT Multi-Protocol Devices
• Connected Home
• Autonomous Hardware Crypto Accelerator
and True Random Number Generator
• Lighting
• Health and Wellness
• Metering
• Integrated PA with up to 19 dBm transmit
power for 2.4 GHz and 20 dBm for Sub-
GHz radios
• Home and Building Automation and Security
• Integrated balun for 2.4 GHz
• Robust peripheral set and up to 65 GPIO
Core / Memory
Clock Management
Energy Management
Other
CRYPTO
CRC
High Frequency
Crystal
Oscillator
High Frequency
RC Oscillator
Voltage
Voltage Monitor
Power-On Reset
Regulator
ARM CortexTM M4 processor
Memory
with DSP extensions and FPU
Protection Unit
Auxiliary High
Frequency RC
Oscillator
Low Frequency
RC Oscillator
DC-DC
Converter
True Random
Number Generator
Low Frequency
Crystal
Oscillator
Ultra Low
Frequency RC
Oscillator
Flash Program
RAM Memory
Memory
Debug Interface
with ETM
LDMA
Controller
Brown-Out
Detector
SMU
32-bit bus
Peripheral Reflex System
Radio Transceiver
Serial
I/O Ports
Timers and Triggers
Analog I/F
Interfaces
RFSENSE
Sub GHz
LNA
DEMOD
ADC
I
External
Interrupts
USART
Timer/Counter
Protocol Timer
RF Frontend
Analog
Comparator
IFADC
AGC
PGA
PA
Low Energy
UARTTM
General
Purpose I/O
Low Energy
Timer
Watchdog Timer
Q
IDAC
To Sub GHz
receive I/Q
mixers and PA
Real Time
Counter and
Calendar
RFSENSE
BALUN
Capacitive Sense
I2C
Pin Reset
Pulse Counter
2.4 GHz
LNA
I
Frequency
Synthesizer
MOD
VDAC
RF Frontend
Low Energy
Sensor Interface
Pin Wakeup
Cryotimer
Op-Amp
PA
To 2.4 GHz receive
I/Q mixers and PA
To Sub GHz
and 2.4 GHz PA
Q
Lowest power mode with peripheral operational:
EM0—Active EM1—Sleep
EM2—Deep Sleep
EM3—Stop
EM4—Hibernate
EM4—Shutoff
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Rev. 1.0