ATSAM4C8CB-AU

Overview

The ATSAM4C8CB-AU is an ARM Cortex-M4 microcontroller from the SAM4C family, manufactured by Microchip Technology (formerly Atmel). It features a 32-bit data bus and operates at a maximum clock frequency of 120 MHz. The device integrates 512 kB of Flash program memory and 152 kB of SRAM data RAM. It supports a supply voltage range of 1.62 V to 3.6 V and includes an 8-channel, 10-bit ADC. The component provides 74 I/O pins and supports interfaces including I2C, PWM, SPI, and UART. It is housed in a TQFP-100 package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates hardware cryptographic acceleration for secure key storage and authentication protocols.
• Features multiple flexible serial communication controllers supporting various standard protocols.
• Includes built-in analog-to-digital conversion with multiple channels for sensor interfacing.

Applications

• Industrial control systems requiring secure communication
• Smart metering applications with encryption needs
• Consumer electronics with high-performance processing requirements

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature grade. Ensure compatibility with existing board layouts regarding pin assignments and power supply requirements. Confirm that the intended application environment falls within the specified operating temperature range. Check for any obsolescence notices or lifecycle status updates from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a balance of moderate flash capacity and robust security features is required. The 120 MHz performance suits applications needing efficient code execution without excessive power consumption. Consider the available I/O count and peripheral set against system interface requirements. Evaluate the TQFP-100 package suitability for the target PCB design constraints and thermal management strategy.

Part Context

This part belongs to the SAM4C series of 32-bit microcontrollers based on the ARM Cortex-M4 core. The series is designed for applications demanding high performance combined with advanced security capabilities. It shares architectural similarities with other SAM4 families but offers specific memory configurations and peripheral sets tailored for cost-sensitive yet secure embedded solutions.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure replacement parts maintain identical pinout compatibility and electrical specifications if direct drop-in replacement is necessary.