ATSAM4CMS8CA-AU

Overview

The ATSAM4CMS8CA-AU is a 32-bit microcontroller from the SAM4CM series, featuring an ARM Cortex-M4/M4F dual-core processor with a maximum clock speed of 120MHz. It integrates 1MB (1024K x 8) of Flash memory and 256KB (256K x 8) of SRAM. The device includes 16 channels of 12-bit ADCs and one 10-bit DAC. It operates within a voltage range of 1.62V to 3.6V and supports interfaces including EBI/EMI, I2C, IrDA, SPI, and UART/USART. The component is housed in a 100-LQFP package.

Feature Summary

• Dual-core architecture combining high-performance processing with real-time control capabilities
• Integrated cryptographic engine for secure data handling and authentication
• Multiple communication peripherals supporting diverse industrial interface requirements
• High-resolution analog-to-digital conversion for precise sensor interfacing

Applications

• Industrial automation controllers requiring deterministic real-time response
• Medical devices needing secure data transmission and processing
• Smart metering systems with encryption requirements
• Automotive infotainment and instrument clusters

Procurement Notes

Verify the specific suffix 'CA' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 100-LQFP form factor. Cross-reference the datasheet revision history for any recent pinout or electrical characteristic updates before finalizing procurement specifications.

Selection Notes

Select this model when dual-core processing is necessary for separating real-time tasks from complex application logic. Consider the 1MB Flash capacity for large firmware storage needs. Evaluate the 120MHz performance against power consumption constraints. Verify that the available GPIO count and peripheral set meet the system connectivity requirements without external multiplexers.

Part Context

This component belongs to the SAM4CM family, designed for applications demanding high performance and security. It utilizes the ARM Cortex-M4 core with optional FPU support. The series emphasizes low power consumption while maintaining high throughput, making it suitable for battery-operated or thermally constrained environments compared to higher-power alternatives.

Replacement Considerations

Consult the SAM4CM series datasheet for direct pin-compatible substitutes such as other variants within the same family with different memory sizes. Verify functional equivalence regarding the cryptographic engine and peripheral availability before substituting.