ATSAM4SD16CB-CFN

Overview

The ATSAM4SD16CB-CFN is a high-performance microcontroller based on the ARM Cortex-M4 core, operating at up to 120 MHz. It integrates 16 MB of Flash memory and 2 MB of SRAM within a QFP-100 package. Key peripherals include multiple USARTs, SPI interfaces, I2C controllers, and a USB OTG controller. The device features an Analog-to-Digital Converter (ADC) with 12-bit resolution and multiple timers. It supports various low-power modes and includes cryptographic accelerators for secure applications.

Feature Summary

• Integrates ARM Cortex-M4 processor with FPU for efficient digital signal processing capabilities.
• Includes extensive connectivity options such as USB OTG, Ethernet MAC, and multiple serial communication interfaces.
• Features hardware security modules including AES, SHA, and RSA accelerators for data protection.

Applications

• Industrial control systems requiring robust processing and connectivity.
• Medical devices needing secure data handling and precise analog input.
• Consumer electronics utilizing USB connectivity and display interfaces.

Procurement Notes

Verify the specific suffix 'CFN' corresponds to the QFP-100 package and commercial temperature range in official Microchip documentation. Confirm that the part number matches the exact memory configuration of 16 MB Flash and 2 MB SRAM. Ensure compatibility with required voltage levels and clock speeds before procurement.

Selection Notes

Select this component when high code density and performance are required alongside significant on-chip memory. Consider the integrated USB and Ethernet capabilities if network connectivity is essential. Evaluate power consumption requirements against available low-power modes. Verify peripheral availability meets interface needs without external components.

Part Context

This model belongs to the SAM4S series of 32-bit microcontrollers designed for cost-sensitive applications. It shares architectural similarities with other SAM4 variants but offers distinct memory sizes and peripheral sets. The series targets markets demanding balance between processing power and integration level.

Replacement Considerations

Check Microchip's official cross-reference tools for direct pin-compatible or functionally equivalent alternatives within the SAM4 family. Verify memory size and peripheral compatibility before substituting with other ARM Cortex-M4 based MCUs from different manufacturers.