EFM32 Wonder Gecko Family

Energy Micro expands its MCU portfolio to combat energy consumption

Energy Micro's EFM32 Wonder Gecko FamilyWith the release of the EFM32 Wonder Gecko family, Energy Micro expands its MCU portfolio to combat energy consumption in more applications. The new EFM32 family members include the ARM® Cortex™-M4 core with a DSP (Digital Signal Processing) instruction set and dedicated Floating Point Unit (FPU). Taking advantage of the Cortex-M4 with integrated FPU, the Wonder Gecko achieves faster processing and longer sleep times. Even development time can be significantly reduced with the Floating Point Unit. An FPU enables software engineers to use floating-point variables without any overhead in processing time.

The Wonder Gecko is also designed for minimum leakage; ultra-low sleep mode consumption is guaranteed, even at high temperatures. High integration of peripherals, designed for low power consumption, offloads the CPU and reduces power consumption both in active and sleep modes. All the EFM32 specific ultra-low power peripherals, such as LESENSE (Low Energy Sensor Interface) along with ADC, Analog Comparators, and DAC, are available to help engineers achieve the absolute lowest power consumption in their application.


  • EFM32 Wonder Gecko features unique and autonomous peripherals that ensure energy efficient and sub μA operation in sleep modes.
  • Optimized Current vs. Temperature curve with extreme low leakage technology, the sleep current curve stays flat throughout the whole operation range, from -40° to 85°C.
  • Boosted performance ARM Cortex-M4 with FPU The 32-bit EFM32 Wonder Gecko gives you the energy efficiency benefits of Floating Point Unit and Digital Signal Processing.

EFM32 Wonder Gecko Family

ImageManufacturer Part NumberDescriptionTypeCore ProcessorAvailable Quantity
EFM32WG-STK3800 product page link
EFM32WG232F256-QFP64 datasheet linkIC MCU 32BIT 256KB FLASH 64TQFPEFM32WG232F256-QFP64IC MCU 32BIT 256KB FLASH 64TQFPARM® Cortex®-M4F32-Bit1003 - Immediate
EFM32WG232F256-QFP64 product page link
EFM32WG230F256-QFN64 datasheet linkIC MCU 32BIT 256KB FLASH 64QFNEFM32WG230F256-QFN64IC MCU 32BIT 256KB FLASH 64QFNARM® Cortex®-M4F32-Bit349 - Immediate
EFM32WG230F256-QFN64 product page link
EFM32WG280F256-QFP100 datasheet linkIC MCU 32BIT 256KB FLASH 100LQFPEFM32WG280F256-QFP100IC MCU 32BIT 256KB FLASH 100LQFPARM® Cortex®-M4F32-Bit976 - Immediate
EFM32WG280F256-QFP100 product page link
EFM32WG395F256-BGA120 datasheet linkIC MCU 32BIT 256KB FLASH 120BGAEFM32WG395F256-BGA120IC MCU 32BIT 256KB FLASH 120BGAARM® Cortex®-M4F32-Bit499 - Immediate
EFM32WG395F256-BGA120 product page link
EFM32WG990F256-BGA112 datasheet linkIC MCU 32BIT 256KB FLASH 112BGAEFM32WG990F256-BGA112IC MCU 32BIT 256KB FLASH 112BGAARM® Cortex®-M4F32-Bit773 - Immediate
EFM32WG990F256-BGA112 product page link
EFM32WG-DK3850 datasheet linkKIT DEV EFM32 WONDER GECKOEFM32WG-DK3850KIT DEV EFM32 WONDER GECKOMCU 32-BitARM® Cortex®-M4F13 - Immediate
EFM32WG-DK3850 product page link
EFM32WG980F256-QFP100 datasheet linkIC MCU 32BIT 256KB FLASH 100LQFPEFM32WG980F256-QFP100IC MCU 32BIT 256KB FLASH 100LQFPARM® Cortex®-M4F32-Bit0EFM32WG980F256-QFP100 product page link
Published: 2013-05-07