EFM32 Giant Gecko Series 1 Family
EFM32GG12 Family Data Sheet
The EFM32 Giant Gecko Series 1 MCUs are the world’s most
energy-friendly microcontrollers, featuring new connectivity interfa-
ces and user interface features.
• ARM Cortex-M4 at 72 MHz
• Ultra low energy operation
• 76 µA/MHz in Energy Mode 0 (EM0)
• 1.8 μA EM2 Deep Sleep current (RTCC
running with state and RAM retention)
EFM32GG12 includes a powerful 32-bit ARM® Cortex®-M4 and provides robust security
via a unique cryptographic hardware engine supporting AES, ECC, SHA, and True Ran-
dom Number Generator (TRNG). New features include an SD/MMC/SDIO controller, Oc-
tal/Quad-SPI memory controller, CAN bus controller, PDM interface, highly robust capac-
itive sensing, enhanced alpha blending graphics engine, and LESENSE/PCNT enhance-
ments for smart energy meters. These features, combined with ultra-low current active
mode and short wake-up time from energy-saving modes, make EFM32GG12 microcon-
trollers well suited for any battery-powered application, as well as other systems requir-
ing high performance and low-energy consumption.
• Octal/Quad-SPI memory interface w/ XIP
• SD/MMC/SDIO Host Controller
• PDM Microphone/Sensor Interface
• Dual CAN 2.0 Bus Controller
• Crystal-free low-energy USB
• Hardware cryptographic engine supports
AES, ECC, SHA, and TRNG
• Robust capacitive touch sense
Example applications:
• Footprint compatible with select EFM32
packages
• Smart energy meters
• Mid- and high-tier wearables
• IoT devices
• Industrial and factory automation
• Home automation and security
• 5 V tolerant I/O
Core / Memory
Clock Management
Energy Management
Other
ARM CortexTM
M4 processor
with FPU and
High Frequency
Crystal Oscillator
High Frequency
RC Oscillator
Voltage
Regulator
Voltage/Temp
Monitor
CRYPTO
ETM
Universal HF RC
Oscillator
CRC
PLL
MPU
DC-DC
Converter
Power-On Reset
Backup Domain
True Random
Number Generator
Flash Program
Debug Interface
Memory
Auxiliary High
Freq. RC Osc.
Ultra Low Freq.
RC Oscillator
Brown-Out
Detector
LDMA
RAM Memory
Low Frequency
Crystal Oscillator
Low Frequency
RC Oscillator
SMU
Controller
32-bit bus
Peripheral Reflex System
Serial Interfaces
I/O Ports
Timers and Triggers
Analog Interfaces
Low Energy
Timer/Counter
USART
UART
Low Energy LCD
ADC
EBI + pixel-alpha
TFT Driver
Sensor IF
Controller
VDAC
CAN
SD / MMC / SDIO
Quad-SPI
Operational
Amplifier
Low Energy Timer
Pulse Counter
Real Time Counter
Watchdog Timer
CRYOTIMER
External
Interrupts
General
Purpose I/O
PDM
Analog
Comparator
IDAC
LEUSB
(crystal free)
Low Energy
UARTTM
Real Time Counter
and Calendar
Capacitive
Sensing
Pin Reset
Pin Wakeup
I2C
Lowest power mode with peripheral operational:
EM0 - Active
EM2 – Deep Sleep
EM4H - Hibernate
EM1 - Sleep
EM3 - Stop
EM4S - Shutoff
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