Document
EFR32FG12 Gecko Proprietary Protocol SoC Family Data Sheet
The Gecko proprietary protocol family of SoCs is part of the Wireless Gecko portfolio. Gecko SoCs are ideal for enabling energyfriendly proprietary protocol 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 features.
Gecko applications include:
• Home and Building Automation and Security • Metering • Electronic Shelf Labels • Industrial Automation • 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 across EFR32FG families
(exceptions apply for 5V-tolerant pins) • 12-channel Peripheral Reflex System,
Low-Energy Sensor Interface & Multichannel Capacitive Sense Interface • Autonomous Hardware Crypto Accelerator and True Random Number Generator • Integrated PA with up to 19 dBm (2.4 GHz) or 20 dBm (Sub-GHz) TX power • 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 I
LNA 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
CRC RAC
FRC BUFC
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
Brown-Out Detector
Power-On Reset
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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Rev. 1.7
EFR32FG12 Gecko Proprietary Protocol SoC Family Data Sheet
Feature List
1. Feature List
The EFR32FG12 highlighted features are listed below.
• Low Power Wireless System-on-Chip • High Performance 32-bit 40 MHz ARM Cortex®-M4 with DSP instruction and floating-point unit for efficient signal processing • Embedded Trace Macrocell (ETM) for advanced debugging • Up to 1024 kB flash program memory • Up to 256 kB RAM data memory • 2.4 GHz and Sub-GHz radio operation • Trans.