ATSAMG55J19A-MU
Microchip Technology
The ATSAMG55J19A-MU is a 32-bit ARM Cortex-M4 microcontroller from Microchip Technology with 512KB Flash memory, 176KB RAM, and operating at 120MHz. It features 48 I/O pins, and supports I2C, SPI, UART/USART, and USB connectivity.