EFR32FG14 Flex Gecko Proprietary
Protocol SoC Family Data Sheet
The Flex Gecko proprietary protocol family of SoCs is part of the
KEY FEATURES
Wireless Gecko portfolio. Flex Gecko SoCs are ideal for enabling
energy-friendly proprietary protocol networking for IoT devices.
• 32-bit ARM® Cortex®-M4 core with 40
MHz maximum operating frequency
The single-die solution provides industry-leading energy efficiency, ultra-fast wakeup
times, a scalable power amplifier, an integrated balun and no-compromise MCU fea-
tures.
• Up to 256 kB of flash and 32 kB of RAM
• Pin-compatible across EFR32FG families
(exceptions apply for 5V-tolerant pins)
• 12-channel Peripheral Reflex System
enabling autonomous interaction of MCU
peripherals
Flex Gecko applications include:
• Home and Building Automation and Security
• Metering
• Autonomous Hardware Crypto Accelerator
• Integrated PA with up to 19 dBm (2.4
GHz) or 20 dBm (Sub-GHz) tx power
• Electronic Shelf Labels
• Industrial Automation
• Integrated balun for 2.4 GHz
• Commercial and Retail Lighting and Sensing
• Robust peripheral set and up to 32 GPIO
Core / Memory
Clock Management
Energy Management
Other
H-F Crystal
Oscillator
H-F
RC Oscillator
Voltage
Voltage Monitor
Regulator
CRYPTO
ARM CortexTM M4 processor
with DSP extensions, FPU and MPU
Flash Program
Memory
Auxiliary H-F RC
Oscillator
L-F
DC-DC
Power-On Reset
Converter
CRC
SMU
RC Oscillator
L-F Crystal
Oscillator
Ultra L-F RC
Oscillator
Brown-Out
Detector
Debug Interface
RAM Memory
LDMA Controller
32-bit bus
Peripheral Reflex System
Radio Transceiver
Serial
I/O Ports
Timers and Triggers
Analog I/F
Interfaces
RFSENSE
Sub GHz
DEMOD
IFADC
AGC
I
External
Interrupts
ADC
USART
Timer/Counter
Protocol Timer
LNA
RF Frontend
PGA
Analog
Comparator
PA
Low Energy
UARTTM
General
Purpose I/O
Low Energy
Timer
Low Energy
Sensor Interface
Q
To Sub GHz
receive I/Q
mixers and PA
IDAC
RFSENSE
BALUN
I2C
Pin Reset
Pulse Counter
Watchdog Timer
Cryotimer
2.4 GHz
LNA
I
VDAC
Frequency
Synthesizer
MOD
Real Time
Counter and
Calendar
RF Frontend
Pin Wakeup
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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