ATSAMS70N20A-CFN

Overview

The ATSAMS70N20A-CFN is a 32-bit microcontroller from the Microchip SAM S70 series, featuring an ARM Cortex-M7 core operating at 300MHz. It integrates 1MB of flash memory and 384KB of SRAM within a 100-TFBGA (9x9) package. The device supports a supply voltage range of 1.08V to 3.6V and includes 75 I/O pins. Peripheral interfaces include I2C, SPI, UART/USART, USB, QSPI, MMC/SD/SDIO, LINbus, and IrDA. Analog capabilities consist of ten 12-bit ADC channels and two 12-bit DAC channels.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with DSP instructions
• Integrated external bus interface for flexible memory expansion
• Comprehensive connectivity suite including USB OTG and multiple serial protocols
• Advanced analog conversion with high-resolution ADC and DAC modules

Applications

• Industrial automation controllers requiring real-time processing
• Human-machine interface (HMI) displays in industrial equipment
• Medical devices needing precise analog signal acquisition
• Automotive infotainment and instrument cluster systems

Procurement Notes

Verify the specific suffix 'CFN' against official Microchip documentation to confirm the exact package type and temperature grade, as datasheets may list variations like TFBGA or VFBGA. Ensure compatibility with required development tools such as ATATMEL-ICE for debugging. Confirm RoHS compliance status through the manufacturer's current environmental declarations before finalizing procurement specifications.

Selection Notes

Select this component when a balance of moderate I/O count and high computational power is required. The 100-pin form factor suits designs where board space is limited but extensive peripheral connectivity is necessary. Compare against the ATSAMS70Q20A-CFN if additional ADC channels or EBI/EMI interfaces are needed, noting the package difference between TFBGA and UFBGA configurations.

Part Context

This MCU belongs to the SAM S70 family, designed for applications demanding high performance and rich connectivity. It shares architectural similarities with the SAM E70 and SAM V71 series but offers distinct memory and peripheral configurations tailored for cost-sensitive yet powerful embedded solutions. The family emphasizes security features and low-power operation modes alongside its processing capabilities.

Replacement Considerations

ATSAMS70N20B-ANT: Offers identical core specifications and memory size but utilizes an LQFP-100 package instead of TFBGA, affecting PCB layout requirements.