EFR32MG1 Mighty Gecko SoC with
Integrated Serial Flash Data Sheet
The Mighty Gecko family of SoCs is part of the Wireless Gecko
KEY FEATURES
multi-protocol portfolio.
• 32-bit ARM® Cortex®-M4 core with 40
MHz maximum operating frequency
The EFR32MG1x632 and EFR32MG1x732 Mighty Gecko ICs integrate a 512 kB serial
flash in the package to support over the air updates. This 5x5 QFN32 package is ideal
for space constrained products that need to support ZigBee, Thread, BLE and propriet-
ary networks.
• Scalable Radio configuration options
available in QFN32 package
• 512 kB co-packaged serial flash for over
the air updates
Mighty Gecko applications include:
• 12-channel Peripheral Reflex System
enabling autonomous interaction of MCU
peripherals
• Connected Home
• Lighting
• Autonomous Hardware Crypto Accelerator
and Random Number Generator
• Home and Building Automation and Security
• Integrated 2.4 GHz balun and PA with up
to 19.5 dBm transmit power
• 125 °C operating temperature ideal for
connected lighting applications
Core / Memory
Clock Management
Energy Management
Other
High Frequency
Crystal
Oscillator
High Frequency
RC Oscillator
Voltage
CRYPTO
Voltage Monitor
Regulator
ARM CortexTM M4 processor
Memory
with DSP extensions and FPU
Protection Unit
Auxiliary High
Frequency RC
Oscillator
Low Frequency
RC Oscillator
DC-DC
Power-On Reset
Converter
CRC
Flash
Low Frequency
Crystal
Oscillator
Ultra Low
Frequency RC
Oscillator
Serial Flash
Program
Memory
Memory
RAM
Memory
Debug
Interface
DMA
Controller
Brown-Out
Detector
32-bit bus
Peripheral Reflex System
Radio Transceiver
Serial
I/O Ports
Timers and Triggers
Analog I/F
Interfaces
External
Interrupts
RFSENSE
DEMOD
USART
Timer/Counter
Protocol Timer
ADC
Low Energy
UARTTM
General
Purpose I/O
Low Energy
Timer
Analog
Comparator
IFADC
AGC
PGA
I
Watchdog Timer
LNA
RF Frontend
Real Time
Counter and
Calendar
BALUN
I2C
Pin Reset
Pulse Counter
IDAC
PA
Frequency
Synthesizer
Q
MOD
Pin Wakeup
Cryotimer
Lowest power mode with peripheral operational:
EM0—Active EM1—Sleep
EM2—Deep Sleep
EM3—Stop
EM4—Hibernate
EM4—Shutoff
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.0