8-bit 20MHz MCUs for Multiple Sensors

8-bit 20MHz MCUs for Multiple Sensors

Microchip Technology’s ATtiny3217 8-bit tinyAVR 1-series microcontroller unit (MCU) features two analog-to-digital converters (ADCs), making it suitable for sensor applications including capacitive touch interfaces. One ADC can be used with the peripheral touch controller (PTC) for touch signal acquisition, while the second one monitors other inputs – such as thermistors and pressure sensors. Alternatively, both ADCs can be used for faster sampling of different types of sensors. This 20MHz MCU has a hardware-based event system that enables inter-peripheral communication without CPU involvement, reducing latency and ensuring faster system response. Available in 24-pin 4mm x 4mm QFN packages, it also has 32kB of flash memory, offering plenty of room for application code while retaining a small physical footprint on the PCB.