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Silicon Labs EFR32FG23 Flex Gecko Wireless SoCs

Silicon Labs EFR32FG23 Flex Gecko Wireless SoCs (System-on-a-Chip) are ideal for sub-GHz Internet of Things (IoT) wireless connectivity for smart home, security, lighting, building automation, and metering. The EFR32FG23 are high-performance sub-GHz radios that provide long-range and are not susceptible to 2.4GHz interference from technologies. The single die, multi-core solution provides industry-leading security and low power consumption with fast wakeup times. An integrated power amplifier enables the next generation of secure connectivity for IoT devices. The EFR32FG23L variants are low-power. Silicon Labs EFR32FG23 Flex Gecko Wireless SoCs are available in 40-pin and 48-pin Quad Flat No-Lead (QFN) packages with a wide -40°C to +125°C operating temperature range.

Features

  • Low-power wireless SoC
    • High-performance 32-bit 78MHz Arm® Cortex®-M33 with DSP instruction and floating-point unit for efficient signal processing
    • Up to 512kB flash program memory
    • Up to 64kB RAM data memory
    • Sub-GHz radio operation
    • TX power up to +20dBm
  • Low energy consumption
    • 4.2mA RX current at 920MHz (400.0kbps 4-FSK)
    • 3.8mA RX current at 915MHz (4.8kbps O-QPSK)
    • 5.1mA RX current at 915MHz (2.0Mbps GFSK)
    • 3.7mA RX current at 868MHz (2.4kbps GFSK)
    • 3.7mA RX current at 868MHz (38.4kbps FSK)
    • 4.0mA RX current at 433MHz (100.0kbps 2GFSK)
    • 25mA TX current at 14dBm output power at 915MHz (14dBm part numbers)
    • 85.5mA TX current at 20dBm output power at 915MHz (20dBm part numbers)
    • 26.0μA/MHz in Active Mode (EM0) at 39.0MHz
    • 1.5μA EM2 DeepSleep current (64kB RAM retention and RTC running from LFXO)
    • 1.2μA EM2 DeepSleep current (16kB RAM retention and RTC running from LFRCO)
  • High receiver performance
    • -98.6dBm sensitivity at 400.0kbps 920MHz 4-GFSK
    • -125.8dBm sensitivity at 4.8kbps 915MHz O-QPSK
    • -96.9dBm sensitivity at 2.0Mbps 915MHz GFSK
    • -125.3dBm sensitivity at 2.4kbps 868MHz GFSK
    • -111.8dBm sensitivity at 38.4kbps 868MHz FSK
    • -110.7dBm sensitivity at 100.0kbps 433MHz 2GFSK
  • Supported modulation format
    • 2/4 (G)FSK with fully configurable shaping
    • OQPSK DSSS
    • (G)MSK
    • OOK
  • Secure Vault
    • Hardware Cryptographic Acceleration for AES128/192/256, ChaCha20-Poly1305, SHA-1, SHA-2/256/384/512, ECDSA +ECDH(P-192, P-256, P-384, P-521), Ed25519 and Curve25519, J-PAKE, PBKDF2
    • True Random Number Generator (TRNG)
    • Arm TrustZone®
    • Secure Boot (Root of Trust Secure Loader)
    • Secure Debug Unlock
    • DPA Countermeasures
    • Secure Key Management with PUF
    • Anti-Tamper
    • Secure Attestation
  • Protocol support
    • Proprietary
    • CONNECT
    • Wi-SUN
    • Sidewalk
    • WM-BUS
  • Wide selection of MCU peripherals
    • Analog-to-Digital Converter (ADC)
    • 12-bit at 1Msps
    • 16-bit at 9ksps
    • 2x Analog Comparator (ACMP)
    • 2-Channel Digital-to-Analog Converter (VDAC)
    • Low-Energy Sensor Interface (LESENSE)
    • Up to 31 general-purpose I/O pins with output state retention and asynchronous interrupts
    • 8-Channel DMA controller
    • 12-channel Peripheral Reflex System (PRS)
    • 4x 16-bit timer/counter with 3x Compare/Capture/PWM channels
    • 1x 32-bit timer/counter with 3x Compare/Capture/PWM channels
    • 32-bit real time counter
    • 24-bit low-energy timer for waveform generation
    • 16-bit pulse counter with asynchronous operation (PCNT)
    • 2x watchdog timers
    • 3x Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART)
    • 1x universal synchronous/asynchronous receiver/transmitter [UART/SPI/SmartCard (ISO 7816)/IrDA/I2S]
    • 2x I2C interface with SMBus support
    • Integrated low-energy LCD controller supporting up to 80 segments
    • Keypad scanner supporting up to 6x8 matrix (KEYSCAN)
    • Die temperature sensor
  • Wide operating range
    • 1.71V to 3.8V single power supply
    • -40°C to +125°C operating temperature range
  • Package options
    • 5.0mm x 5.0mm x 0.85mm QFN-40
    • 5.0mm x 6.0mm x 0.85mm QFN-48

Applications

  • IoT
  • Home and building automation
  • Security
  • Industrial automation
  • Street lighting
  • Smart meters

Block Diagram

Block Diagram - Silicon Labs EFR32FG23 Flex Gecko Wireless SoCs

Development Tools

Silicon Labs xG23 868-915MHz Pro-Kits

Supports the development of Wireless loT devices based on Sub-GHz wireless protocols.

Learn Moreacerca de Silicon Labs xG23 868-915MHz Pro-Kits View Productsrelacionado con Silicon Labs xG23 868-915MHz Pro-Kits

Silicon Labs xG23 868-915MHz Radio Board Kits

Work with the WSTK main board SLWMB4001A to support the development of Wireless loT devices.

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Silicon Labs FG23 433 MHz +10 dBm Radio Board Kits

Designed to work with the WSTK main board SLWMB4001A (not included).

Learn Moreacerca de Silicon Labs FG23 433 MHz +10 dBm Radio Board Kits View Productsrelacionado con Silicon Labs FG23 433 MHz +10 dBm Radio Board Kits

Silicon Labs FG23 868MHz to 915MHz +14 dBm Development Kit

Compact, feature-packed development platform.

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Digi XBee® Wi-SUN® Modules

Enables long-range, low-power wireless communication for industrial and smart city applications.

Learn Moreacerca de Digi XBee® Wi-SUN® Modules

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Publicado: 2021-09-13 | Actualizado: 2025-09-29