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EFM32™ Pearl Gecko 32-bit Microcontroller

 Our Pearl Gecko 32-bit microcontroller (MCU) family boasts ultra-low, active power modes, and short wake-up time from energy-saving modes. Featuring a powerful 32-bit ARM® Cortex®-M4 with a floating-point processor unit and a wide selection of peripherals, the EFM32™ Pearl Gecko is well-suited for battery-powered applications or other systems requiring high performance and low-energy consumption.  

Efm32pg BD
Sleep current with RTC as low as
2.1 μA
Active current as low as
64 μA/MHz

Pearl Gecko Common Specs

  • ARM Cortex-M4 CPU platform
  • 40 MHz
  • Up to 1024 kB Flash
  • Up to 256 kB RAM
  • 64 μA/MHz in Active Mode (EM0)
  • 2.1 μA sleep with RTC and RAM retention
  • Autonomous peripherals in sleep
  • DMA and peripheral reflex system
  • LESENSE
  • USART, I²C, and SPI
  • Up to 65 General Purpose I/O Pins
  • -40 °C to +85 °C TJ operation range
  • 1.8 V to 3.8 V single power supply
  • Packages:
    • 32-pin QFN (5 mm x 5 mm)
    • 48-pin QFN (7 mm x 7 mm)
    • 125-pin BGA (7 mm x 7 mm)

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