EFM32™ Happy Gecko USB-enabled 32-bit Microcontroller
Ideal for battery-operated applications and other systems requiring low energy and high performance, our USB-enabled EFM32™ Happy Gecko family delivers the lowest USB power consumption in the industry.
Based on the powerful ARM® Cortex®-M0+ core, our low-power microcontrollers (MCUs) enable longer battery life and energy-harvesting applications. The Happy Gecko family features innovative low-energy techniques, short wake-up time from energy-saving modes, and a wide selection of peripherals. Our MCUs offer up to 64 kB of flash memory with the added option of embedded USB connectivity and CPU speeds up to 25 MHz.
Happy Gecko Common Specs
- ARM Cortex-M0+ CPU platform
- 25 MHz
- Up to 64 kB Flash
- Up to 8 kB RAM
- 131 μA/MHz in Active Mode (EM0)
- 0.9 μA sleep with RTC and RAM retention
- Autonomous peripherals in sleep
- DMA and peripheral reflex system
- USART, I²C, SPI, and USB
- Up to 35 General Purpose I/O Pins
- -40 °C to +105 °C operation range
- 1.98 V to 3.8 V single power supply
- Packages:
- 24-pin QFN (7 mm x 7 mm)
- 32-pin QFN (6 mm x 6 mm)
- 36-pin QFN (5 mm x 5 mm)
Find the Right Happy Gecko Device 8
Select Columns
Part Number | MHz | Flash | RAM | Dig I/O Pins | 5 Volt Tolerant | ADC 1 | DAC | USB | Cap Sense | LCD | Temp Sensor | Timers (16-bit) | AES-128 | AES-256 | ECC | SHA-1 | SHA-2 | RSA-2048 | UART | USART | SPI | I2C | I2S | EMIF | RTC | Comparators | Vdd (min) | Vdd (max) | Package Type | Package Size (mm) | Internal Osc. | Debug Interface | Cryptography |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
25 | 64 | 8 | 17 | — | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFN24 | 5x5 | ±2% | MTB; SW | ||||||||||||||
25 | 64 | 8 | 17 | 12-bit, 2-ch., 1 Msps | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFN24 | 5x5 | ±2% | MTB; SW | AES-128 | |||||||||||||
25 | 64 | 8 | 24 | 12-bit, 4-ch., 1 Msps | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFN32 | 6x6 | ±2% | MTB; SW | AES-128 | |||||||||||||
25 | 32 | 4 | 37 | 12-bit, 4-ch., 1 Msps | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFP48 | 7x7 | ±2% | MTB; SW | AES-128 | |||||||||||||
25 | 64 | 8 | 37 | 12-bit, 4-ch., 1 Msps | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFP48 | 7x7 | ±2% | MTB; SW | AES-128 | |||||||||||||
25 | 64 | 8 | 37 | 12-bit, 4-ch., 1 Msps | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFP48 | 7x7 | ±2% | MTB; SW | AES-128 | |||||||||||||
25 | 64 | 8 | 22 | 12-bit, 4-ch., 1 Msps | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFN32 | 6x6 | ±2% | MTB; SW | AES-128 | |||||||||||||
25 | 64 | 8 | 35 | 12-bit, 4-ch., 1 Msps | — | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 1.98 | 3.8 | QFP48 | 7x7 | ±2% | MTB; SW | AES-128 |
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EFM32HG Starter Kit
The low energy SLSTK3400A provides an excellent tool to get familiar with the USB-enabled EFM32HG 32-bit microcontrollers (MCUs), the industry’s most energy-friendly MCU based on the ARM® Cortex®-M0+ processor.
![Happy gecko starter kit](/content/dam/siliconlabs/images/products/microcontrollers/32-bit_mcus/happy_gecko/happy-gecko-starter-kit.png)
EFM32HG Starter Kit
The low energy SLSTK3400A provides an excellent tool to get familiar with the USB-enabled EFM32HG 32-bit microcontrollers (MCUs), the industry’s most energy-friendly MCU based on the ARM® Cortex®-M0+ processor.