The GG12 microcontrollers are suitable for a wide range of applications that require advanced processing during "deep sleep" mode, including Internet of Things (IoT) devices, sensors, smart meters, industrial automation, home security, and wearable health and wellness devices.
The EFM32 Giant Gecko 12 family from Silicon Labs offers many of the features of the Giant Gecko 11 microcontrollers in a smaller package, incorporating a unique pulse density modulation (PDM) sensor interface to support PDM microphones and delta sigma sensors. The microcontrollers feature a 32-bit Arm® Cortex®-M4 processor running at 72 MHz with up to 1 MB of on-chip flash memory and 192 KB of RAM. Combining this power with rich analog features, the devices deliver an advanced user experience previously only achievable with high-power microcontrollers.
The devices' low-power peripherals include two 12-bit analog-to-digital converters (ADCs), a digital-to-analog converter (DAC), capacitive touch, and up to 83 general-purpose input/output (GPIO) pins. Additionally, the low-power sensor interface enables fully autonomous processing capabilities during sleep mode. The microcontrollers incorporate robust security features, including a unique cryptographic hardware engine that supports AES, ECC, SHA, and the True Random Number Generator (TRNG).
The EFM32 Giant Gecko 12 family is compatible with the Thunderboard GG12 kit for prototyping and evaluation. The Thunderboard GG12 kit includes an integrated Segger J-Link debugger, two PDM microphones, tri-color LEDs, boot ports, and pushbuttons. The board also includes a ready-to-use demo of the microcontroller's PDM sensor interface, making it ideal for developing high-quality, low-power audio input applications.
