ATSAMS70N20A-CFNT

Overview

The ATSAMS70N20A-CFNT is a 32-bit microcontroller based on the ARM Cortex-M7 core, operating at speeds up to 300MHz. It features 1MB of in-system programmable flash memory and 384KB of SRAM. The device is housed in a 144-UFBGA package with dimensions of 6x6mm. It supports a supply voltage range of 1.08V to 3.6V and operates within a temperature range of -40°C to 105°C. Connectivity options include EBI/EMI, I2C, IrDA, LINbus, MMC/SD/SDIO, QSPI, SPI, UART/USART, and USB interfaces.

Feature Summary

• Integrates an ARM Cortex-M7 processor for high-performance computing capabilities.
• Includes extensive connectivity peripherals such as Ethernet via EBI/EMI and multiple serial communication interfaces.
• Features integrated analog-to-digital and digital-to-analog converters for signal processing applications.

Applications

• Industrial automation controllers requiring robust processing power.
• Medical devices utilizing high-resolution data conversion capabilities.
• Consumer electronics employing graphical user interfaces and touch controls.
• Network infrastructure equipment supporting Ethernet and serial communications.

Procurement Notes

Verify the specific suffix CFNT indicates tape-and-reel packaging when sourcing components. Confirm that the part number corresponds to the SAM S70 series with 1MB flash capacity. Ensure compatibility with existing design tools and development kits from Microchip Technology. Check for any recent datasheet updates or errata sheets relevant to this specific package variant before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring a balance of high-speed processing and moderate memory capacity in a compact footprint. Consider the 144-pin UFBGA package constraints for PCB layout and thermal management. Evaluate the need for external memory if the internal 1MB flash and 384KB SRAM are insufficient for complex firmware requirements. Compare against other SAM S70 variants for pin count and peripheral availability.

Part Context

This microcontroller belongs to the SAM S70 family, which targets performance-oriented embedded applications. It shares architectural similarities with the SAM E70 and V71 families but offers specific peripheral configurations tailored for cost-sensitive yet powerful solutions. The device leverages the same core technology as higher-end models but with reduced pin counts and memory sizes to fit specific market segments.

Replacement Considerations

Direct substitutes within the same package and specification include ATSAMS70Q20A-CFNT, which offers identical memory and core specifications but may differ in minor peripheral configurations or manufacturing batches. Verify pinout compatibility and software register-level equivalence before swapping parts in existing designs.