EFR32FG1 Proprietary Wireless SoCs

EFR32FG1 wireless solutions combine an energy-friendly microcontroller (MCU) with a highly integrated radio transceiver supporting sub-GHz and 2.4 GHz proprietary wireless protocols and proprietary modulation schemes including OOK, shaped FSK, shaped OQPSK with DSSS, with and without FEC. EFR32FG1 SoCs provide industry-leading energy efficiency, ultra-fast wakeup times, a scalable power amplifier, an integrated 2.4 GHz balun and extensive MCU features. The devices are well suited for any battery-operated application and other systems requiring high performance and low energy consumption.

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EFR32FG1 Common Specs

2.4 GHz Radio

Integrated 2.4 GHz BALUN & Power Amplifier
Excellent Receive Sensitivity:
- -103.3 dBm @125 kbps, GFSK
- -103.3 dBm @250 kbps, DSSS-OQPSK
Programmable Output Power: +19.5 dBm
Active-mode RX: 8.8 mA @1 Mbps, 2 GFSK
Active-mode TX:
- 8.5 mA @0 dBm
- 34 mA @10.5 dBm
Low Power Radio features RFSENSE (51 nA)
Antenna Diversity

Sub-GHz Radio

Ideal for proprietary protocols, wireless M-BUS, Low Power Wide Area Network applications
Supported Modulations: 2/4 (G)FSK, OQPSK/(G)MSK, OOK/ASK, BPSK/DBPSK
Optional DSSS modulation technique and FEC channel coding
Excellent Receive Sensitivity:
- -126.4 dBm @600 bps, GFSK, 915 MHz
- -121.4 dBm @2.4 kbps, GFSK, 868 MHz
- -107 dBm @4.8 kbps, OOK, 433 MHz
- -111.9 dBm @38.4 kbps, GFSK, 169 MHz
Programmable Output Power: +20 dBm
Active-mode RX: 8.1 mA @38.4 kbps, 2GFSK
Active-mode TX:
- 19.5 mA @10 dBm, 433 MHz
- 34.5 mA @14 dBm, 868 MHz
Antenna Diversity

Rich Analog and Digital Peripherals

AES-256/128 Hardware Crypto Accelerator with ECC, SHA-1, SHA-2
ADC (12-bit, 1 Msps, 270 µA)
Current DAC (4-bit, Current Source or Sink)
Up to 2 X Voltage DAC
Up to 3 X Operational Amplifier
Low Energy Sensor Interface (select devices)
Multi-channel Capacitive Sense Interface (select devices)
2 X Analog Comparator
Low Energy UART
2 x USART (UART, SPI, IrDA, I²S)
I²C (Address recognition down to EM3)
Timers: RTCC, LE Timer & Pulse Counter
12-channel Peripheral Reflex System
Up to 32 GPIO

Energy Efficient Low Power Modes

Energy Mode 2 (Deep Sleep) Current: 2.2 µA
Ultra-fast wake up: 3 µS from EM3
Wide Supply Voltage range of 1.85 to 3.8 V

Powerful MCU & Memory Options

ARM® Cortex®-M4 + Floating-Point Unit
Up to 40 MHz Clock Speed
Low Active Mode Current: 63 µA/MHz
Up to 256 kB of Programmable Flash
Up to 32 kB RAM

Package Options

QFN48 (7x7 mm)
QFN32 (5x5 mm)

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Part Number	Pricing	Integrated MCU	MCU Core	Core Frequency (MHz)	Flash	RAM	Communications	Output Power (dBm)	RX Current (mA)	Receive Sensitivity (dBm)	TX Current A	TX Current A (dBm)	TX Current B	TX Current B (dBm)	Proprietary 2.4 GHz	Proprietary Sub-GHz	Cryptography	Dig I/O Pins	ADC-1	DAC	Cap Sense	Temp Sensor	Timers (16-bit)	RTC	Comparators	Temperature Range ºC	Package Type	Package Size (mm)	Debug Interface
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Featured Kits

EFR32FG 915 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 915 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

Efr32 flex gecko starter kit

EFR32FG 915 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 915 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

MSRP $276.00

EFR32FG 169 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 169 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

Efr32 flex gecko starter kit

EFR32FG 169 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 169 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

MSRP $276.00

EFR32FG 868 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 868 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

Efr32 flex gecko starter kit

EFR32FG 868 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 868 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

MSRP $276.00

EFR32FG 490 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 490 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

Efr32 flex gecko starter kit

EFR32FG 490 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 490 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

MSRP $276.00

EFR32FG 434 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 434 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

Efr32 flex gecko starter kit

EFR32FG 434 MHz 2.4 GHz and Sub-GHz Starter Kit

The EFR32FG 434 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.

MSRP $276.00

EFR32FG1 2.4 GHz and 434 MHz Radio Board

The EFR32FG1 SLWRB4251B radio board supports dual-band operation with sub-GHz operation in the US FCC 434 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

Efr32fg slwrb4251b radio board

EFR32FG1 2.4 GHz and 434 MHz Radio Board

The EFR32FG1 SLWRB4251B radio board supports dual-band operation with sub-GHz operation in the US FCC 434 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

MSRP $49.00

EFR32FG1 2.4 GHz and 490 MHz Radio Board

The EFR32FG1 SLWRB4251A radio board supports dual-band operation with sub-GHz operation in the US FCC 490 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

Efr32fg slwrb4251a radio board

EFR32FG1 2.4 GHz and 490 MHz Radio Board

The EFR32FG1 SLWRB4251A radio board supports dual-band operation with sub-GHz operation in the US FCC 490 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

MSRP $49.00

EFR32FG1 2.4 GHz and 868 MHz Radio Board

The EFR32FG1 SLWRB4250B radio board supports dual-band operation with sub-GHz operation in the US FCC 868 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

Efr32fg slwrb4250b radio board

EFR32FG1 2.4 GHz and 868 MHz Radio Board

The EFR32FG1 SLWRB4250B radio board supports dual-band operation with sub-GHz operation in the US FCC 868 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

MSRP $49.00

EFR32FG1 2.4 GHz and 915 MHz Radio Board

The EFR32FG1 SLWRB4250A radio board supports dual-band operation with sub-GHz operation in the US FCC 915 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

Efr32fg slwrb4250a radio board

EFR32FG1 2.4 GHz and 915 MHz Radio Board

The EFR32FG1 SLWRB4250A radio board supports dual-band operation with sub-GHz operation in the US FCC 915 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna.

MSRP $49.00

STAGING-PUB1