ATXMEGA64A1-AUR

Overview

The ATXMEGA64A1-AUR is an 8/16-bit AVR XMEGA microcontroller featuring 64KB of in-system self-programmable flash, 2KB EEPROM, and 4KB internal SRAM. It includes a 4-channel DMA controller, eight-channel event system, eight 16-bit timer/counters, four USARTs with IrDA support, four TWI interfaces, and four SPIs. The device integrates AES and DES crypto engines, two 12-bit ADCs, two 12-bit DACs, and four analog comparators. Operating voltage ranges from 1.6V to 3.6V, supporting frequencies up to 12MHz at 1.6V and 32MHz at 2.7V. It is housed in a 100-ball VFBGA package.

Feature Summary

• High-performance AVR RISC architecture executing instructions in a single clock cycle for optimized power consumption versus processing speed.
• Integrated capacitive touch sensing support via the QTouch library for buttons, sliders, and wheels.
• Advanced peripheral set including a four-channel DMA controller, eight-channel event system, and programmable multilevel interrupt controller.
• Robust security features with AES and DES cryptographic engines and read-while-write capabilities in flash memory.

Applications

• Industrial control
• Building control
• Medical applications

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or direct channels. Confirm the specific ordering suffix matches the required package type and temperature range. Ensure compliance with RoHS directives as indicated in official documentation. Check for obsolescence status, as this model is not recommended for new designs; consider the XMEGA A1U series for future projects.

Selection Notes

Select this microcontroller for applications requiring high performance with low power consumption in a compact 100-ball VFBGA package. Evaluate the need for extensive I/O lines and peripheral richness, including multiple serial interfaces and analog converters. Consider the availability of development tools and the QTouch library if capacitive sensing is required. Verify that the operating voltage and frequency requirements align with the system's power supply constraints.

Part Context

This component belongs to the Atmel AVR XMEGA family, specifically the A1 series, known for rich peripherals and high efficiency. It utilizes the enhanced RISC architecture for fast code execution. The device supports various programming and debugging interfaces, including PDI and JTAG. It is designed for embedded applications needing flexible memory options and robust connectivity features.

Replacement Considerations

Microchip recommends using the XMEGA A1U series for new designs instead of this model. Verify pin compatibility and software migration efforts when transitioning to alternative parts within the same family or newer generations.

FAQ

What programming interfaces are supported by the ATXMEGA64A1-AUR?

The device supports the Program and Debug Interface (PDI) and an IEEE 1149.1 compliant JTAG interface for programming and debugging.

Does the ATXMEGA64A1-AUR support capacitive touch sensing?

Yes, it supports capacitive touch sensing through the free QTouch library, enabling implementation of buttons, sliders, and wheels.