Microchip ATXMEGA128D4-AUR: A High-Performance 8/16-bit AVR XMEGA D4 Microcontroller
The Microchip ATXMEGA128D4-AUR stands as a powerful and versatile member of the AVR XMEGA family, engineered to deliver exceptional performance for demanding embedded applications. This microcontroller leverages the high-performance, low-power AVR® CPU with a rich feature set, making it an ideal choice for complex tasks in industrial control, automation, consumer electronics, and more.
At its core, the device operates as an 8/16-bit microcontroller, harnessing the efficiency of the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, it achieves throughputs approaching 1 Million Instructions Per Second (MIPS) per MHz, allowing system designers to optimize power consumption versus processing speed. The 128KB of in-system self-programmable Flash memory provides ample space for application code, supported by 8KB of SRAM and 2KB of EEPROM for efficient data handling and storage.

A defining characteristic of the XMEGA series is its robust peripheral set designed for precise control and connectivity. The ATXMEGA128D4-AUR integrates a DMA Controller (4 channels), which significantly reduces CPU overhead by handling data transfers between peripherals and memory autonomously. This is crucial for high-speed applications like audio processing or multi-sensor data acquisition. The controller also features a real-time clock, a 16-bit timer/counter system, and multiple USARTs, SPIs, and TWIs (I²Cs) for comprehensive communication.
Furthermore, its advanced analog capabilities include a 12-bit, 2Msps Analog-to-Digital Converter (ADC) and two 12-bit Digital-to-Analog Converters (DACs), enabling high-precision sensor interfacing and analog signal generation. The inclusion of an analog comparator adds to its suite of tools for monitoring analog signals. Built with reliability in mind, it offers sophisticated power management features, including multiple sleep modes and an internal watchdog timer, ensuring stable operation in electrically noisy environments.
Housed in a 44-pin TQFP package, the ATXMEGA128D4-AUR is designed for surface-mount technology and is specified over an industrial temperature range, making it suitable for a wide array of commercial and industrial applications. Its combination of high integration, low power consumption, and real-time performance makes it a formidable solution for next-generation embedded designs.
ICGOODFIND: The ATXMEGA128D4-AUR is a top-tier choice for developers needing a balance of high computational performance, extensive memory, and advanced analog/digital peripherals in a single, integrated circuit.
Keywords: AVR XMEGA, 8/16-bit Microcontroller, DMA Controller, 12-bit ADC, In-System Programmable Flash.
