ATSAM4S16CA-CFN

Overview

The ATSAM4S16CA-CFN is a 32-bit microcontroller from the SAM4S series, featuring an ARM Cortex-M4 core with a 2KB cache running at up to 120 MHz. It integrates 1 MB of embedded Flash memory and 128 KB of SRAM. The device includes a Memory Protection Unit (MPU), DSP instruction set, and Thumb-2 instruction set. Key peripherals include USB 2.0 Device support, multiple USARTs, SPI, I2C, and a 12-bit ADC. It operates within a temperature range of -40°C to +105°C and utilizes a 100-TFBGA package.

Feature Summary

• Integrates ARM Cortex-M4 core with 2KB cache and Memory Protection Unit for secure execution
• Supports high-speed data conversion via 12-bit Analog-to-Digital Converter
• Includes comprehensive connectivity options such as USB 2.0, SPI, and USART interfaces

Applications

• Smart metering systems requiring secure code execution
• Industrial control applications needing robust peripheral integration
• Medical devices utilizing precise analog signal acquisition

Procurement Notes

Verify the specific suffix 'CFN' against official Microchip documentation to confirm the 100-TFBGA package and industrial temperature grade. Ensure compatibility with existing board layouts for the TFBGA form factor. Cross-reference the datasheet for exact pin assignments and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when a balance of processing power and memory capacity is required for complex firmware tasks. The inclusion of the MPU makes it suitable for applications demanding memory protection. Consider the 120 MHz clock speed for real-time processing requirements and verify that the 128 KB SRAM meets the application's runtime data storage needs.

Part Context

This part belongs to the SAM4S family, which offers pin-to-pin compatibility with SAM3N and SAM3S products. It builds upon legacy architectures while adding advanced features like the Cortex-M4 DSP instructions and enhanced security through the MPU. The series is designed for cost-sensitive yet performance-critical embedded applications.

Replacement Considerations

Consult official Microchip documentation for verified substitute part numbers. Ensure any replacement maintains the same core architecture, memory size, and package dimensions to guarantee mechanical and functional compatibility.