ATSAM3N0CA-CU

Overview

The ATSAM3N0CA-CU is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the SAM3N series. It features 32 kB of in-system programmable Flash memory and 8 kB of SRAM. The device operates at a maximum clock frequency of 48 MHz and supports an operating voltage range of 1.62 V to 3.6 V. It provides 34 general-purpose I/O pins and includes multiple communication interfaces such as SPI, UART/USART, and I2C. The component is housed in a 48-LQFP package with dimensions of 7x7 mm and is rated for an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core optimized for low-power applications.
• Includes built-in analog-to-digital converters and pulse width modulation peripherals.
• Supports direct memory access for efficient data transfer without CPU intervention.
• Features internal oscillator options to simplify system design.

Applications

• Low-cost embedded control systems
• Simple serial communication gateways
• Basic sensor interface modules

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Confirm current lifecycle status as distribution availability varies by region. Ensure compatibility with existing PCB footprints for the 48-LQFP package before procurement.

Selection Notes

Select this component for designs requiring minimal code space and limited I/O count. Compare RAM requirements against other SAM3N variants if larger data buffers are needed. Verify that the 48 MHz processing speed meets real-time control constraints.

Part Context

This part belongs to the SAM3N family, which targets cost-sensitive applications. It shares architectural similarities with higher-capacity models but offers reduced memory resources. The series utilizes standard ARM development tools and software frameworks.

FAQ

What is the maximum operating voltage for the ATSAM3N0CA-CU?

The maximum supply voltage is 3.6 V, with a minimum of 1.62 V.

Does this MCU support USB connectivity?

No, the ATSAM3N0CA-CU does not include a USB controller; it supports SPI, UART, and I2C interfaces.