ATSAM4CMS16CB-AU

Overview

The ATSAM4CMS16CB-AU is a single-core ARM Cortex-M4 microcontroller from the SAM4CM series, manufactured by Microchip Technology. It features 1 MB of flash memory and 152 kB of SRAM within a 100-pin LQFP package. The device operates at a maximum clock frequency of 120 MHz with a 32-bit data bus width. It supports an input/output count of 57 pins and includes eight 10-bit ADC channels. Operating voltage ranges from 1.08 V to 1.32 V, with an I/O voltage of 3.3 V. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates hardware cryptographic acceleration for secure data processing
• Includes Multi-Ring Lockdown (MRLB) architecture for enhanced system security
• Supports high-accuracy analog-to-digital conversion capabilities

Applications

• Single-phase energy metering systems
• Multi-channel power monitoring applications
• Secure industrial control devices requiring cryptographic protection

Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified suppliers. Confirm the specific suffix 'AU' corresponds to the Lead-free and RoHS compliant variant in the LQFP-100 package. Check current lifecycle status as distribution records indicate potential end-of-life conditions. Ensure supply chain documentation matches the exact part number to avoid substitution errors.

Selection Notes

Select this MCU when single-core performance combined with dedicated hardware security features is required. The 152 kB RAM and 1 MB Flash provide sufficient resources for complex metering algorithms. Verify that the narrow 1.08 V to 1.32 V core voltage range aligns with the target power supply design. Consider the 57 available I/O lines against interface requirements for communication and sensing.

Part Context

This component belongs to the SAM4CM family, designed for high-performance embedded applications. Unlike dual-core variants such as the ATSAM4CMS4CC-AU, this model utilizes a single Cortex-M4 core. It shares the advanced security features found in other SAM4CM parts but offers a different memory configuration tailored for specific cost and performance balances in metering and control sectors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.