ATSAME70J20A-AN

Overview

The ATSAME70J20A-AN is a 32-bit microcontroller from the Microchip SAM E70 series, featuring an ARM Cortex-M7 core operating at 300MHz. It integrates 1MB of Flash memory and 384KB of SRAM within a 64-pin LQFP package. The device supports a supply voltage range of 1.62V to 3.6V and operates between -40°C and 105°C. Key peripherals include multiple communication interfaces such as Ethernet, USB, CANbus, I2C, SPI, and UART, alongside DMA, PWM, and watchdog timers.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with integrated FPU
• Comprehensive connectivity suite including Ethernet, USB OTG, and CANbus
• Integrated analog capabilities with 12-bit ADC and DAC channels
• Robust peripheral set supporting DMA, I2S, and various serial protocols

Applications

• Industrial automation controllers requiring high-speed processing
• Medical devices needing precise analog signal acquisition
• Automotive infotainment and instrument cluster systems
• Smart energy metering and smart grid applications

Procurement Notes

Verify the specific suffix 'AN' against the official Microchip datasheet to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 64-LQFP form factor. Cross-reference pin assignments with reference designs to validate interface connections. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when a balance of moderate I/O count and high computational power is required. It is suitable for designs where Ethernet and USB connectivity are essential but extensive external memory expansion is not needed. Consider thermal management requirements for the LQFP package in enclosed industrial enclosures. Evaluate peripheral availability against application-specific protocol needs.

Part Context

This part belongs to the SAM E70 family, designed for cost-sensitive applications compared to the S70 or V70 series. It shares the same core architecture but offers reduced pin counts and peripheral sets. The J-series designation typically indicates a specific package and I/O configuration within the broader E70 ecosystem, targeting embedded control tasks.

Replacement Considerations

Direct substitutes may include other variants within the ATSAME70JxxA series with different memory sizes or packages. Verify pin-to-pin compatibility if swapping between J20 and other J-series models. Check for any changes in peripheral availability or clock speeds that might impact software compatibility.