ATSAMD20J15A-AU Microcontroller: High-Performance ARM Cortex-M0+ MCU for Embedded Systems 2024-06-09 Discover the ATSAMD20J15A-AU microcontroller from Microchip Technology, featuring a 32-bit ARM Cortex-M0+ core, 48MHz speed, 52 I/O pins, and 32KB Flash memory. Ideal for IoT, industrial automation, and consumer electronics.