ATSAMS70J20A-MN

Overview

The ATSAMS70J20A-MN is a Microchip Technology microcontroller from the SAM S70 series, featuring an ARM Cortex-M7 core operating at 300 MHz. It integrates 1 MB of Flash memory and 384 kB of SRAM within a 64-QFN (9x9) package. The device supports a supply voltage range of 1.08 V to 3.6 V and operates between -40°C and +105°C. Key peripherals include five 12-bit ADC channels, one 12-bit DAC, and interfaces such as I2C, SPI, UART/USART, USB, and IrDA.

Feature Summary

• Integrates an ARM Cortex-M7 processor with a floating-point unit for high-performance computing tasks.
• Includes dedicated hardware security features to protect code integrity and sensitive data.
• Supports multiple communication protocols including USB, SPI, and UART for versatile connectivity.

Applications

• Industrial automation controllers requiring real-time processing
• Human-machine interface (HMI) displays in industrial equipment
• Medical devices needing secure data handling and precise analog input

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the 64-QFN form factor. Cross-reference the datasheet revision date to confirm peripheral availability and errata status before finalizing procurement plans.

Selection Notes

Select this component when a balance of moderate pin count and high computational power is required. The 64-pin QFN package suits space-constrained designs. Compare against the ATSAMS70J20A-ANT if reel packaging is preferred over tray or cut-tape options. Evaluate memory requirements against the 1 MB Flash limit for complex application logic.

Part Context

This part belongs to the SAM S70 family, designed for applications demanding high performance and advanced security. It shares architectural similarities with the SAM E70 and SAM V70 series but offers optimized peripheral sets for cost-sensitive industrial and consumer markets. The J-series designation typically indicates a specific pin count and package configuration within the broader S70 portfolio.

Replacement Considerations

ATSAMS70J20A-ANT: Same core and memory, different LQFP64 package. ATSAMS70J20A-MNT: Same core and memory, same QFN package but potentially different tape-and-reel orientation or manufacturer lot variations; verify mechanical dimensions.