ATSAM3X8EA-CU

Overview

The ATSAM3X8EA-CU is a 32-bit ARM Cortex-M3 microcontroller operating at up to 84 MHz. It features 512 Kbytes of Flash memory and 96 Kbytes of SRAM. The device includes an Ethernet MAC, dual CAN controllers, and a High-Speed USB Mini Host/Device port with embedded transceiver. It offers 103 I/O lines and supports multiple interfaces including UART, SPI, and TWI. The component operates within a voltage range of 1.62V to 3.6V and is housed in a 144-ball LFBGA package.

Feature Summary

• Integrated Ethernet MAC and dual CAN controllers for robust networking capabilities
• High-speed data transfer architecture with multi-layer bus matrix and dedicated DMA channels
• Supports capacitive touch implementation via QTouch library integration
• Includes low-power modes such as Sleep, Wait, and Backup for energy efficiency

Applications

• Industrial automation networks
• Home and building automation gateways
• Smart grid applications
• Networking devices requiring high-speed connectivity

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with required power supply voltages and interface standards before procurement. Cross-reference the datasheet revision date to confirm feature availability.

Selection Notes

Select this component for designs requiring integrated Ethernet and CAN connectivity alongside high-performance processing. Consider the 144-pin LFBGA package constraints for PCB layout. Evaluate power consumption requirements against the available low-power modes and internal regulator specifications.

Part Context

This part belongs to the SAM3X series of Flash microcontrollers based on the ARM Cortex-M3 core. The series is designed for high-performance applications requiring extensive peripheral sets and connectivity options. It shares architectural similarities with other SAM3X variants but differs in memory size and package configuration.

Replacement Considerations

Consult official Microchip documentation for confirmed substitute part numbers. Verify pinout compatibility and peripheral functionality when considering alternatives within the SAM3X family.