EFM32 Giant Gecko Family
EFM32GG Data Sheet
The EFM32 Giant Gecko MCUs are the world’s most energy-
friendly microcontrollers.
KEY FEATURES
• ARM Cortex-M3 at 48 MHz
The EFM32GG offers unmatched performance and ultra low power consumption in both
active and sleep modes. EFM32GG devices consume as little as 0.6 μA in Stop mode
and 180 μA/MHz in Run mode. It also features autonomous peripherals, high overall chip
and analog integration, and the performance of the industry standard 32-bit ARM Cortex-
M3 processor, making it perfect for battery-powered systems and systems with high-per-
formance, low-energy requirements.
• Ultra low power operation
• 0.6 μA current in Stop (EM3), with
brown-out detection and RAM retention
• 45 μA/MHz in EM1
• 180 μA/MHz in Run mode (EM0)
• Fast wake-up time of 2 µs
• Hardware cryptography (AES)
EFM32GG applications include the following:
• Industrial and home automation
• Smart metering
• Up to 1024 kB of Flash and 128 kB of
RAM
• Alarm and security systems
• Water metering
• Health and fitness applications
• Gas metering
Core / Memory
Clock Management
Energy Management
Security
Voltage
Regulator
Voltage
Comparator
High Frequency
Crystal Oscillator
High Frequency
RC Oscillator
ARM CortexTM
M3 processor
Memory
Protection Unit
Hardware AES
Brown-out
Detector
Power-on
Reset
Auxiliary High
Freq. RC Osc.
Low Freq.
RC Oscillator
Flash Program
Memory
Debug w/ ETM
DMA Controller
Back-up Power
Domain
Low Frequency
Crystal Oscillator
Ultra Low Freq.
RC Oscillator
RAM Memory
32-bit bus
Peripheral Reflex System
Serial Interfaces
I/O Ports
Timers and Triggers
Analog Interfaces
External Bus
Interface
Timer/Counter
Low Energy Timer
Pulse Counter
Back-up RTC
LESENSE
TFT Driver
USART
UART
I2C
ADC
LCD Controller
Real Time Counter
Watchdog Timer
External
Interrupts
General
Purpose I/O
Operational
Amplifier
Low Energy
UARTTM
DAC
Analog
Comparator
USB
Pin Reset
Pin Wakeup
Lowest power mode with peripheral operational:
EM0 - Active
EM2 – Deep Sleep
EM1 - Sleep
EM3 - Stop
EM4 - Shutoff
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