ATSAM4CMS4CB-AU

Overview

The ATSAM4CMS4CB-AU is a single-phase, 4-channel standard accuracy Crypto AFE MCU from the SAM4CM series. It features an ARM Cortex-M4 core with a maximum clock frequency of 120 MHz. The device includes 256 kB of Flash program memory and 152 kB of SRAM data RAM. It utilizes a 32-bit data bus width and offers 57 I/O pins. The ADC resolution is 10 bits with 6 channels. Operating voltage ranges from 1.62 V to 3.6 V, and it supports interfaces including I2C, SPI, UART, and USART. The component is housed in a 100-LQFP package.

Feature Summary

• Integrates ARM Cortex-M4 processor core for high-performance execution
• Includes dedicated cryptographic acceleration capabilities
• Supports multiple communication protocols via integrated peripherals
• Features low-power operation within specified voltage range

Applications

• Single-phase metering applications
• Smart grid energy monitoring systems
• Industrial control devices requiring secure communication
• Embedded security modules

Procurement Notes

Verify current availability status as this part may be discontinued or subject to limited supply. Confirm package type and temperature grade match design requirements. Check for obsolescence notices from Microchip Technology before finalizing procurement plans. Ensure compatibility with existing firmware and hardware designs.

Selection Notes

Select this component for applications requiring integrated crypto acceleration and standard accuracy analog front-end capabilities. Consider the 100-LQFP package size and pin count for PCB layout constraints. Evaluate power consumption against system requirements given the 1.62 V to 3.6 V operating range. Verify interface compatibility with target sensors and communication buses.

Part Context

This microcontroller belongs to the SAM4CM family, designed for advanced metering infrastructure and secure embedded applications. It combines processing power with specialized analog and cryptographic functions. The series targets industries needing reliable data acquisition and secure data handling in compact form factors.

Replacement Considerations

Consult Microchip Technology official documentation for qualified replacement parts. Verify functional equivalence regarding pinout, memory size, and peripheral configuration. Ensure any substitute maintains required cryptographic standards and analog performance characteristics.