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.

MCU core
ARM Cortex-M4
Flash
32 - 256 kB

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)
Status
Find the Right EFR32FG1 Device Select Columns
Select Columns
Part Number 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
ARM Cortex-M4 40 128 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 128 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 32 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 87 20 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 125 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 125 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 128 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 19.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 133 19.5 8.8 0 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 128 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 19.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 133 19.5 8.8 0 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 19.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 133 19.5 8.8 0 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 19.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 133 19.5 8.8 0 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 19.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 133 19.5 8.8 0 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 19.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 133 19.5 8.8 0 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 128 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz); -99 (250 kbps DSSS-OQPSK 2.4 GHz) 126.7 19.5 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 28 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz); -99 (250 kbps DSSS-OQPSK 2.4 GHz) 126.7 19.5 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 20 8.1 -126.4 (600 bps GFSK 915 MHz); -99 (250 kbps DSSS-OQPSK 2.4 GHz) 126.7 19.5 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 128 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 128 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 32 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 32 8 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 32 8 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 ECC SHA-1 SHA-2 32 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -121 dBm (2.4 kbps 2 GFSK 0.1% BER) 0 0 87 20 AES-128 AES-256 SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.1 -126.4 (600 bps GFSK 915 MHz) 0 0 87 20 AES-128 AES-256 SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 128 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 128 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 256 32 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 32 8 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 ECC SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 32 8 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 ECC SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 SHA-1 SHA-2 16 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN32 5x5 JTAG, SW
ARM Cortex-M4 40 64 16 1 x I²C 1 x I²S 2 x SPI 3 x UART 2 x USART -30 16.5 8.7 -99 (250 kbps DSSS-OQPSK 2.4 GHz) 88 16.5 34.1 10.5 AES-128 AES-256 SHA-1 SHA-2 31 12-bit, SAR, 1 Msps iDAC 7 2 -40 85 QFN48 7x7 JTAG, SW

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