USB-enabled EFM32™ Happy Gecko 32-bit MCUs

Silicon Labs USB-enabled EFM32™ Happy Gecko 32-bit Microcontrollers are ideal for battery-operated applications and other systems requiring low energy and high performance. The MCUs are based on the powerful ARM® Cortex®-M0+ core. Happy Gecko MCUs have a standby current consumption of 900nA and consume less than 180µA per MHz while executing real-life code from Flash. Silicon Labs USB-enabled Happy Gecko 32-bit microcontrollers feature low-energy techniques, short wake-up time from energy-saving modes, and a wide selection of peripherals.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
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Package/Case
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Program Memory Size
Data Bus Width
ADC Resolution
Maximum Clock Frequency
Number of I/Os
Data RAM Size
Supply Voltage - Min
Supply Voltage - Max
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Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
6,984In Stock
Min.: 1
Mult.: 1

EFM32HG SMD/SMT QFN-24 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 17 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB USB MCU
Datasheet
1,034In Stock
Min.: 1
Mult.: 1

EFM32HG SMD/SMT TQFP-48 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 35 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
931In Stock
Min.: 1
Mult.: 1

EFM32HG SMD/SMT TQFP-48 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 37 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB USB MCU
Datasheet
2,558In Stock
Min.: 1
Mult.: 1

EFM32HG SMD/SMT QFN-32 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 22 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
3,883In Stock
Min.: 1
Mult.: 1

EFM32HG SMD/SMT QFN-24 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 17 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
17In Stock
Min.: 1
Mult.: 1

EFM32HG SMD/SMT QFN-32 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 24 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB USB MCU
Datasheet
8In Stock
1,000Expected 2026/10/27
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

EFM32HG SMD/SMT TQFP-48 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 35 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
2,717Expected 2026/08/26
Min.: 1
Mult.: 1
: 3,000

EFM32HG SMD/SMT QFN-32 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 22 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Reel, Cut Tape