MCHPATSAM3U2CA-CU
Overview
The ATSAM3U2CA-CU is a high-performance 32-bit ARM Cortex-M3 microcontroller featuring a high-speed USB 2.0 interface with integrated transceiver. It provides 128KB of Flash and 36KB of SRAM, specifically designed for data-intensive applications requiring fast communication and low latency.
Why Choose This Part
The primary advantage is the integrated High-Speed USB 2.0 peripheral, which is rare in microcontrollers of this class. It also features a dual-bank Flash architecture that supports safe in-application programming (IAP) for seamless firmware updates.
Applications
Getting Started
Development is supported by the Microchip Studio IDE and the MPLAB X ecosystem. Engineers should use the SAM3U-EK evaluation kit or the J-Link debug probe for hardware development, while utilizing the Atmel Software Framework (ASF) for USB stack implementation.
Dev Boards
Development boards and breakout modules featuring the ATSAM3U2CA-CU or compatible chips — ready to use for prototyping.



