ATSAM3X4CA-CU

Overview

The ATSAM3X4CA-CU is a 32-bit microcontroller based on the ARM Cortex-M3 processor, operating at a maximum frequency of 84 MHz. It features 256 Kbytes of embedded Flash memory and 64 Kbytes of SRAM. The device includes an Ethernet MAC, dual CAN controllers, and a High-Speed USB Mini Host/Device port with an embedded transceiver. It provides up to 103 I/O lines and supports multiple communication interfaces including USARTs, SPIs, TWIs, and HSMCI.

Feature Summary

• Integrates an Ethernet MAC and dual CAN controllers for robust networking capabilities
• Includes a High-Speed USB Mini Host/Device port with an embedded transceiver
• Features a multi-layer bus matrix and DMA channels to maximize data throughput
• Supports low-power modes including Sleep, Wait, and Backup

Applications

• Industrial automation gateways
• Home and building automation systems
• Smart grid network applications

Procurement Notes

Verify the specific package variant (LQFP or BGA) and temperature grade against project requirements. Confirm that the ordering suffix corresponds to the desired pin count and interface configuration. Ensure compatibility with the 1.62V to 3.6V supply voltage range during design validation.

Selection Notes

Select this component for applications requiring integrated Ethernet and CAN connectivity alongside high-speed USB host capabilities. The 84 MHz Cortex-M3 core offers sufficient processing power for complex protocol handling. Consider the available I/O count and peripheral set when mapping system requirements to the specific package options.

Part Context

This part belongs to the SAM3X/A series of flash microcontrollers from Microchip Technology. The series is designed for high-performance networking applications, combining a 32-bit RISC processor with extensive connectivity peripherals. It targets markets such as industrial control, smart energy, and consumer electronics where reliable data transmission is critical.

Replacement Considerations

Cross-reference with other SAM3X variants like ATSAM3X8C or ATSAM3A4C for different memory sizes or feature sets. Verify pin-to-pin compatibility if substituting within the same package family.