ATSAM3A8CA-AU

Overview

The ATSAM3A8CA-AU 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 (64 + 32 Kbytes). The device includes an Ethernet MAC, two CAN controllers, USB 2.0 High-Speed Mini Host/Device, and multiple communication interfaces including USARTs, SPIs, and TWIs. It operates from 1.62V to 3.6V and is housed in a 100-lead LQFP package.

Feature Summary

• Integrated Ethernet MAC for networking applications
• Dual CAN controllers with eight mailboxes each
• USB 2.0 High-Speed Mini Host/Device port
• Multi-layer bus matrix supporting parallel task execution

Applications

• Industrial automation gateways
• Home and building automation systems
• Networking equipment

Procurement Notes

Verify the specific suffix 'AU' corresponds to the 100-lead LQFP package and industrial temperature range. Confirm the manufacturer designation as Microchip Technology following the Atmel acquisition. Ensure the component meets RoHS compliance requirements for your target market.

Selection Notes

Select this model when high-speed data throughput and robust connectivity are required. The architecture supports DMA channels and peripheral DMA controllers for efficient data handling. Consider the available low-power modes if energy efficiency is a design constraint alongside processing performance.

Part Context

This component belongs to the SAM3X/A series of Flash microcontrollers based on the ARM Cortex-M3 RISC processor. The series is designed for high-performance embedded applications requiring significant memory and diverse peripheral integration within a compact footprint.

Replacement Considerations

ATSAM3X8CA-AU