ATSAM4C32EA-AUR

Overview

The ATSAM4C32EA-AUR is a 32-bit dual-core microcontroller from the SAM4C series, featuring two Arm Cortex-M4 processors operating at a maximum frequency of 120MHz. It integrates 2MB of embedded flash memory and 304KB of SRAM within a 144-LQFP package. The device supports an external bus interface for expanded memory and includes peripherals such as DMA, LCD controller, USB, and various communication interfaces.

Feature Summary

• Dual-core architecture with independent Arm Cortex-M4 processors for separating application and security tasks
• Integrated hardware cryptographic engine supporting secure data processing
• External Bus Interface (EBI) enabling expansion of program and data memory beyond internal limits
• Built-in LCD controller and multiple high-speed communication peripherals

Applications

• Smart energy metering systems requiring secure authentication
• Industrial control applications needing real-time processing
• Medical devices with strict security and reliability requirements
• Automotive infotainment and instrument clusters

Procurement Notes

Verify the specific suffix EA-AUR against official Microchip documentation to confirm pinout compatibility and thermal characteristics. Ensure the component meets RoHS standards if required by your assembly process. Cross-reference the datasheet revision date to validate peripheral availability and errata information before finalizing procurement specifications.

Selection Notes

Select this model when dual-core isolation between application logic and security functions is necessary. The 144-pin LQFP package provides sufficient I/O count for complex interfaces. Consider the 120MHz performance and 2MB flash capacity for applications running sophisticated firmware or graphical user interfaces via the integrated LCD controller.

Part Context

This component belongs to the SAM4C family of 32-bit microcontrollers designed for high-performance embedded applications. It builds upon the Cortex-M4 core architecture with added security features and extended memory options compared to lower-tier SAM4S or SAM4L series devices.

Replacement Considerations

Consult official substitution lists for compatible variants within the SAM4C family. Verify pin-to-pin compatibility and memory size differences when considering alternative part numbers.