ATSAME70J19B-AN

Overview

The ATSAME70J19B-AN is a 32-bit microcontroller based on the ARM Cortex-M7 core, operating at frequencies up to 300MHz. It features 512KB of embedded flash memory and 256KB of multi-port SRAM. The device includes a hardware floating-point unit (FPU) and DSP instructions for advanced signal processing. Connectivity options include an Ethernet MAC with AVB support, CAN-FD, USB HS, SPI, I2C, and USART interfaces. It operates within a voltage range of 1.7V to 3.6V and is housed in a 64-LQFP package.

Feature Summary

• Integrated single-precision and double-precision hardware floating-point unit (FPU) supporting advanced DSP functions via Thumb-2 instruction set.
• Embedded Ethernet MAC with dedicated hardware support for Audio Video Bridging (AVB), IEEE 1588 PTP, and energy-efficient Ethernet.
• Configurable tightly coupled memory (TCM) interface allowing flexible allocation between instruction and data access for optimized performance.
• Comprehensive analog front-end featuring a 12-bit ADC with offset/gain error correction and a 12-bit DAC for precise signal handling.

Applications

• Industrial motor control systems requiring high-speed processing and precision analog feedback
• Smart metering applications utilizing secure communication protocols and low-power modes
• Medical equipment demanding high-fidelity signal acquisition and real-time data processing
• Automotive infotainment and instrument clusters leveraging Ethernet AVB capabilities

Procurement Notes

Verify the specific suffix 'AN' corresponds to the lead-free, RoHS-compliant variant as documented in the official Microchip datasheet. Confirm that the 64-LQFP package dimensions match your PCB footprint requirements. Ensure compatibility with MPLAB X IDE and Harmony software frameworks for development. Check for any recent Product Change Notifications regarding packaging or material composition updates before finalizing procurement orders.

Selection Notes

Select this component when a balance of high-performance computing and rich connectivity is required in a compact form factor. The 512KB flash and 256KB RAM are suitable for complex firmware and GUI implementations. Consider the integrated Ethernet and CAN-FD if networked industrial or automotive communication is necessary. Evaluate power consumption specifications against system requirements, particularly for battery-operated devices utilizing backup modes.

Part Context

This part belongs to the SAM E70 family of microcontrollers, designed for high-performance embedded applications. It shares architectural similarities with other Cortex-M7 based devices but offers specific memory and peripheral configurations tailored for cost-sensitive yet powerful solutions. The series supports various development tools and evaluation kits to accelerate time-to-market for designers.

Replacement Considerations

Consult the official Microchip product selector guide for verified cross-references. Alternative parts within the SAM E70 series may offer different memory sizes or pin counts. Ensure any substitute maintains compatible pinout, voltage levels, and peripheral functionality to avoid redesign efforts.

FAQ

Does the ATSAME70J19B-AN support hardware floating-point operations?

Yes, it includes a single-precision and double-precision hardware floating-point unit (FPU) to accelerate mathematical computations.

What network interfaces are available on this microcontroller?

It features an Ethernet MAC with AVB support, CAN-FD, USB High-Speed, SPI, I2C, and multiple USART interfaces.