ATSAM4N8CA-CUR

Overview

The ATSAM4N8CA-CUR is a 32-bit microcontroller from the Microchip SAM4N series, built on an ARM Cortex-M4 core. It integrates 512 kB of Flash memory and 64 kB of SRAM. The device operates at a maximum clock frequency of 100 MHz with a supply voltage range of 1.62 V to 3.6 V. It features a 10-bit ADC with 9 channels, 34 I/O pins, and supports interfaces including I2C, SPI, UART, and IrDA. Packaged in a 48-QFN (7x7) reel, it functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor core for efficient code execution
• Includes hardware floating-point unit support for complex calculations
• Provides multiple communication peripherals for system connectivity
• Features low-power modes for energy-constrained applications

Applications

• Industrial control systems requiring robust processing
• Consumer electronics devices needing low power consumption
• Medical equipment utilizing precise analog signal acquisition
• Smart home automation controllers

Procurement Notes

Verify the specific suffix CUR indicates the tape and reel packaging format when sourcing components. Confirm that the operating voltage and temperature ranges align with your design requirements. Ensure compatibility with existing development tools and software frameworks provided by the manufacturer. Check for any recent production change notices regarding assembly sites or material composition updates before finalizing procurement plans.

Selection Notes

Select this component when a balance of processing power and peripheral count is needed in a compact form factor. The 100 MHz speed suits applications requiring moderate computational load. Consider the 48-pin QFN package constraints for PCB layout. Evaluate if the 512 kB memory size meets firmware storage needs compared to smaller variants in the same family.

Part Context

This part belongs to the SAM4N series, designed for cost-sensitive embedded applications. It shares architectural similarities with other SAM4N models but offers specific memory and pin configurations. The series targets markets demanding reliable performance without excessive complexity. It serves as a bridge between lower-end Cortex-M0+ devices and higher-performance Cortex-M4F solutions.

Replacement Considerations

ATSAM4N8AA-CU: Same core and memory, different package (QFN-48 tray). ATSAM4N8AA-MU: Same core and memory, different package (QFN-48 tray). ATSAM4N8AA-MUR: Same core and memory, same package type (QFN-48), but tray vs reel distinction may apply depending on specific suffix interpretation.