ATSAM4CMS8CB-AUR

Overview

The ATSAM4CMS8CB-AUR is a 32-bit microcontroller from the SAM4CM series, manufactured by Microchip Technology. It features an ARM Cortex-M4 core operating at a maximum frequency of 120 MHz. The device integrates 512 KB of flash memory and 64 KB of SRAM. It is housed in a 100-LQFP package with 57 general-purpose I/O pins. The unit supports a supply voltage range of 1.62 V to 3.6 V and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-core architecture combining ARM Cortex-M4 and M0 processors for efficient task separation
• Integrated hardware cryptographic engine supporting AES, DES, TDES, RSA, and ECC algorithms
• Built-in Multi-Rate LCD Controller (MRLC) for direct display interface management
• External Bus Interface (EBI) enabling connection to external memory or peripheral devices

Applications

• Industrial control systems requiring deterministic real-time processing
• Smart metering applications utilizing integrated cryptographic security
• Human-machine interfaces driven by the internal LCD controller
• Secure data acquisition nodes with external memory expansion needs

Procurement Notes

Verify the specific suffix 'CB' against the official Microchip datasheet to confirm pinout compatibility and feature set. Ensure the ordering part number matches the required package type and temperature grade. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component when dual-core processing capabilities are necessary for separating real-time tasks from background operations. The integrated cryptographic engine makes it suitable for secure communication endpoints. Consider the 100-pin LQFP package constraints regarding board space and thermal dissipation requirements for the target application environment.

Part Context

This microcontroller belongs to the SAM4CM family, designed for high-performance embedded applications. It combines processing power with specialized peripherals like the MRLC and EBI. The series targets markets demanding robust security features alongside flexible connectivity options in a compact surface-mount package.

Replacement Considerations

Consult the Microchip SAM4CM product selector for verified cross-references. Potential substitutes include other variants within the SAM4CM family with matching memory sizes and package footprints. Verify functional equivalence of the cryptographic engine and LCD controller before substitution.