ATSAMS70N21B-CFN

Overview

The ATSAMS70N21B-CFN is a 32-bit ARM Cortex-M7 microcontroller from the SAM S70 series. It features a maximum clock frequency of 300 MHz, 2 MB of Flash memory, and 384 KB of SRAM. The device includes 10-channel 12-bit ADCs and 2-channel 12-bit DACs. It offers 75 I/O pins and supports interfaces including SPI, UART/USART, and USB. Operating voltage ranges from 1.7 V to 3.6 V, with an operating temperature range of -40°C to +105°C. The component is housed in a 100-VFBGA (7x7) package.

Feature Summary

• Integrates ARM Cortex-M7 core with DSP and FPU capabilities for high-performance processing.
• Provides extensive analog connectivity via multiple 12-bit ADC channels and DAC outputs.
• Supports diverse communication protocols including SPI, UART, USART, and USB.

Applications

• Industrial control systems requiring robust processing and analog interfacing
• Medical devices needing precise signal acquisition and conversion
• Automotive applications utilizing CAN-FD and high-speed data handling

Procurement Notes

Verify the specific suffix 'CFN' against official Microchip documentation to confirm the 100-VFBGA package and commercial grade temperature range. Ensure compatibility with existing PCB footprints for the 7x7 mm form factor. Cross-reference the latest datasheet revision for any errata or design-in notes relevant to the SAM S70 family before finalizing procurement orders.

Selection Notes

Select this model when 2 MB of non-volatile storage and 384 KB of RAM are required alongside a 300 MHz processing speed. The 100-pin VFBGA package suits designs prioritizing pin count within a compact footprint. Consider alternative packages like LFBGA-100 if thermal dissipation requirements differ, while maintaining identical core specifications.

Part Context

This component belongs to the SAM S70 family, designed for applications demanding high performance and rich peripheral integration. It shares architectural similarities with the ATSAME70 and ATSAMV70 series but offers distinct memory configurations and package options tailored for cost-sensitive yet powerful embedded solutions.

FAQ

Does the ATSAMS70N21B-CFN support CAN-FD?

Yes, the SAM S70 family integrates CAN-FD controllers for high-speed automotive and industrial communication.

What is the maximum operating temperature for this MCU?

The specified maximum operating temperature is +105°C, suitable for extended industrial environments.