ATSAM3N0CA-CU

Overview

The ATSAM3N0CA-CU is a Microchip Technology ARM microcontroller within the SAM3N series, featuring an ARM Cortex-M3 core. It integrates 16 kB of Flash program memory and 4 kB of SRAM data memory. The device operates at a maximum clock frequency of 48 MHz and supports a supply voltage range of 1.62 V to 3.6 V. It provides 34 general-purpose I/O pins and includes an 8-channel, 10-bit Analog-to-Digital Converter (ADC). Connectivity options include SPI, UART/USART, and I2C interfaces. The component is housed in a 48-LQFP package and is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core with up to 48 MHz execution speed.
• Includes on-chip non-volatile Flash memory and static RAM for code and data storage.
• Features multiple communication peripherals including SPI, UART, and I2C controllers.
• Supports low-power operation modes suitable for battery-powered applications.

Applications

• Industrial automation control systems
• Smart grid metering devices
• Building and home automation controllers
• Test and measurement equipment

Procurement Notes

Verify the specific suffix 'CU' against the official Microchip datasheet to confirm package type and temperature grade. Confirm current availability status as distribution channels may list obsolete or end-of-life inventory. Ensure compatibility with existing PCB footprints for the 48-LQFP package before procurement.

Selection Notes

Select this component when a balance of moderate memory capacity and low pin count is required for cost-sensitive embedded designs. Compare against other SAM3N variants if higher I/O counts or larger memory sizes are needed. Verify that the 48 MHz performance meets real-time processing requirements for the target application logic.

Part Context

This part belongs to the Microchip SAM3N family of 32-bit ARM Cortex-M3 microcontrollers. The family is designed for high-performance, power-efficient applications requiring integrated connectivity. The SAM3N series offers various memory densities and package options to support diverse design constraints in industrial and consumer markets.

Replacement Considerations

Consult the official Microchip SAM3N product selection guide for verified cross-reference part numbers. Consider variants such as ATSAM3N0AA-AU for different package options or memory configurations within the same series.