ATSAM4C4CB-AUR

Overview

The ATSAM4C4CB-AUR is a 32-bit ARM Cortex-M4 microcontroller from the SAM4C series, manufactured by Microchip Technology. It features a 120 MHz clock speed and integrates 512 KB of Flash program memory with 304 KB of SRAM data RAM. The device operates within a voltage range of 1.62 V to 3.6 V and supports an industrial temperature range of -40°C to +85°C. It is housed in a 100-LQFP surface-mount package and provides 106 general-purpose I/O pins. Key peripherals include a 16-channel 12-bit ADC, two 12-bit DACs, and multiple communication interfaces such as USB, SPI, I2C, and UART.

Feature Summary

• Dual-core architecture combining an ARM Cortex-M4 processor with an ARM Cortex-M0 coprocessor for efficient task management.
• Integrated cryptographic engine supporting AES, DES, Triple DES, RSA, ECC, SHA-1, and SHA-256 for secure data processing.
• High-speed external bus interface (EBI) enabling direct connection to parallel LCD displays and external memory devices.
• Advanced low-power modes including idle, wait, sleep, and standby to optimize energy consumption in battery-operated applications.

Applications

• Industrial control systems requiring high performance and secure communication protocols.
• Smart metering and utility infrastructure applications demanding robust cryptographic security.
• Medical equipment utilizing precise analog-to-digital conversion and real-time processing capabilities.
• Automotive infotainment and instrument clusters leveraging the dual-core architecture for multitasking.

Procurement Notes

Verify the specific suffix 'AUR' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Check for obsolescence notices or lifecycle changes directly from Microchip Technology before finalizing procurement plans. Ensure compatibility with existing PCB footprints for the 100-LQFP package.

Selection Notes

Select this component when a dual-core ARM Cortex-M4/M0 solution is required for complex embedded tasks. Consider the 512 KB Flash and 304 KB RAM capacity for applications needing substantial code storage and runtime data handling. Evaluate the 120 MHz operating frequency against power constraints. Verify that the 106 I/O count meets interface requirements for sensors, displays, and communication buses.

Part Context

The ATSAM4C4CB-AUR belongs to the SAM4C family, designed for high-performance applications. It extends the capabilities of single-core MCUs by adding a secondary Cortex-M0 core. This family targets markets requiring advanced security features and high-speed peripheral connectivity. The part number denotes specific memory configurations and package types within the broader SAM4C product line.

Replacement Considerations

Consult Microchip Technology's official cross-reference tools for verified substitute part numbers. Ensure any replacement maintains compatible pinouts, memory sizes, and peripheral sets. Verify that alternative components support the same voltage ranges and operating temperatures. Review datasheets for differences in package dimensions and electrical characteristics.