ATSAM4C8CA-AU

Overview

The ATSAM4C8CA-AU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 120 MHz. It features 512 KB of in-system programmable Flash memory and 192 KB of SRAM. The device includes a comprehensive set of peripherals such as USB OTG, Ethernet MAC, CAN, and multiple serial interfaces. It supports a supply voltage range of 1.62 V to 3.6 V and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient signal processing.
• Includes dedicated Ethernet Media Access Controller (MAC) supporting IEEE 802.3 standards.
• Features built-in USB On-The-Go (OTG) controller for versatile connectivity options.
• Provides robust security mechanisms including secure boot and cryptographic accelerators.

Applications

• Industrial automation controllers requiring deterministic real-time performance
• Smart energy metering systems with communication capabilities
• Medical devices needing high reliability and low power consumption
• Automotive infotainment and body control modules

Procurement Notes

Verify the specific suffix against official Microchip documentation to ensure correct package type and temperature grade. Confirm RoHS compliance status through current datasheets. Check for any recent Product Change Notifications regarding assembly locations or marking changes before finalizing procurement plans.

Selection Notes

Select this component when high-performance processing is combined with rich peripheral sets like Ethernet and USB. Compare RAM and Flash sizes against application requirements. Ensure the 100-pin LQFP package fits the PCB layout constraints. Validate that the 120 MHz clock speed meets timing deadlines for complex algorithms.

Part Context

This part belongs to the SAM4C series, designed for applications demanding high performance and extensive connectivity. It serves as an upgrade path from lower-end SAM4S or SAM4L families where additional peripherals like Ethernet are required. The series targets cost-sensitive yet feature-rich embedded systems.

Replacement Considerations

ATSAM4C8CB-AU: Same specifications but in QFP package. ATSAM4C16CA-AU: Higher memory capacity variant. ATSAM4CM16CA-AU: Newer generation with enhanced features.