The MICROCHIP TECH. part ATSAM3U4CA-CU is a high-performance microcontroller unit (MCU) featuring a 32-bit ARM Cortex M3 RISC processor. With 256KB of Flash memory, this MCU operates on either a 1.8V or 3.3V power supply, providing flexibility for various applications. Housed in a 100-pin Thin Fine Ball Grid Array (TFBGA) package, this MCU is ideal for compact designs and offers excellent performance for a wide range of embedded systems. This version comes in a tray for convenient storage and handling during manufacturing processes.