ATSAM3U4CA-CU

Overview

The ATSAM3U4CA-CU is a 32-bit ARM Cortex-M3 microcontroller operating at up to 96 MHz. It features 256 Kbytes of Flash memory and 52 Kbytes of SRAM. The device includes a High-Speed USB Device Port, four USARTs, four SPI interfaces, two TWI interfaces, and an External Bus Interface. It operates from 1.62V to 3.6V and is housed in a 100-pin TFBGA package.

Feature Summary

• High-speed USB 2.0 device port with embedded transceiver
• Multi-layer bus matrix for parallel task execution
• Real-time Event Management for peripheral interaction
• Three software-selectable low-power modes

Applications

• Data loggers
• PC peripherals
• USB to SDIO bridges
• USB to SPI bridges
• USB to External Bus Interface bridges

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with required voltage levels and interface configurations before procurement.

Selection Notes

Select this component for applications requiring high-speed data transfers and USB connectivity. Consider the 100-pin TFBGA package constraints and verify power supply requirements for optimal performance.

Part Context

Part of the Atmel SMART SAM3U series, designed for high-performance 32-bit processing. Integrates ARM Cortex-M3 core with extensive peripheral sets for versatile embedded control tasks.

Replacement Considerations

Consult official datasheets for cross-referencing with other SAM3U variants or compatible Microchip MCU families based on pinout and feature requirements.

FAQ

What are the available low-power modes?

The device supports Sleep, Wait, and Backup modes.

Does it support NAND Flash?

Yes, it includes a Static Memory Controller with NAND Flash controller support.