Mouser Electronics stocks the EFM32 Giant Gecko 12 microcontroller family from Silicon Labs. Designed to provide advanced features and security during ultra-low-power performance, the microcontrollers offer low-energy peripherals to deliver autonomous performance while sleeping. They are suitable for a broad range of applications requiring advanced processing during deep sleep, including IoT devices, sensors, smart meters, industrial automation, home security, and health and fitness wearables.

The family offers many of the features of the Giant Gecko 11 microcontrollers in a smaller package, and adds a unique pulse density modulation (PDM) sensor interface to support microphones and delta-sigma sensors. The microcontrollers boast a 32-bit Arm Cortex-M4 processor running at 72MHz with up to 1Mb of on-chip Flash and 192Kb of RAM. Combining this power with rich analogue features, they deliver an advanced user experience previously attainable only on high-power-consumption microcontrollers.

Their low-energy peripherals include two 12-bit analogue-to-digital converters, a digital-to-analog converter, capacitive touch and up to 83 general-purpose inputs/outputs. Additionally, the low-energy sensor interface enables fully autonomous processing capabilities during sleep mode. They include robust security features, including a unique cryptographic hardware engine that supports AES, ECC, SHA and true random number generator.

The family is supported by the Thunderboard GG12 kit for prototyping and evaluation, which includes an integrated Segger J-Link debugger, two PDM microphones, tri-color LEDs, breakout ports and push buttons. The board also includes an out-of-box demo for the microcontroller’s PDM sensor interface, making it an ideal choice for the development of high-quality, low-power audio input applications.

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