{"product_id":"atxmega256a3bu-aur","title":"ATXMEGA256A3BU-AUR","description":"\u003cp\u003eThe Microchip ATXMEGA256A3BU-AUR is a high-performance 8\/16-bit AVR microcontroller designed for demanding embedded applications. It combines 256KB of flash memory and 16KB of SRAM with a rich set of peripherals including DMA, PWM, and multiple serial interfaces. Operating from 1.6V to 3.6V and up to 32MHz, it delivers a balance of power efficiency and processing capability. The 64-TQFP package is suitable for compact designs, while the integrated brown-out detection and watchdog timer enhance system reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Memory Density:\u003c\/strong\u003e 256KB flash and 16KB SRAM enable complex firmware and data buffering without external memory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Data Transfer:\u003c\/strong\u003e The integrated DMA controller reduces CPU load, improving real-time performance in data-intensive applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Supports 1.6V to 3.6V, allowing direct battery operation and compatibility with low-voltage sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Safety Features:\u003c\/strong\u003e Includes BOD, POR, and WDT to prevent system failures in critical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Packaging:\u003c\/strong\u003e The 64-TQFP package balances pin count with board space, ideal for industrial and portable devices.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIndustrial Automation and Control\u003c\/h3\u003e\u003cp\u003eWith its 32MHz AVR core, 256KB flash, and 16KB SRAM, the ATXMEGA256A3BU-AUR can handle complex control loops and real-time monitoring in PLCs and industrial robots. The integrated DMA offloads data transfer tasks, ensuring deterministic response times.\u003c\/p\u003e\u003ch3\u003eSmart Metering and Energy Monitoring\u003c\/h3\u003e\u003cp\u003eThe low supply voltage range (1.6V-3.6V) and power-saving modes make it ideal for smart meters. Its PWM outputs can drive metering sensors, while the WDT ensures reliable long-term operation in unattended environments.\u003c\/p\u003e\u003ch3\u003ePortable Medical Devices\u003c\/h3\u003e\u003cp\u003eOperating at up to 85°C and with low power consumption, this MCU suits wearable health monitors and portable diagnostic tools. The 64-TQFP package allows for compact PCB designs, and the DMA enables efficient sensor data acquisition.\u003c\/p\u003e\u003ch3\u003eAutomotive Body Electronics\u003c\/h3\u003e\u003cp\u003eAlthough not AEC-Q100 qualified, its robust feature set (BOD, POR, WDT) and wide voltage range support automotive body control modules like window lifts and lighting systems, where reliability is critical.\u003c\/p\u003e\u003ch3\u003eBuilding Automation and HVAC\u003c\/h3\u003e\u003cp\u003eThe MCU can manage multiple temperature and humidity sensors, using its PWM to control fans and dampers. The 256KB flash allows for complex communication stacks (e.g., BACnet) and data logging.\u003c\/p\u003e\u003ch3\u003eConsumer Electronics and IoT Gateways\u003c\/h3\u003e\u003cp\u003eWith its rich peripheral set and 32MHz speed, it can serve as a hub for sensor fusion in smart home devices, handling protocol conversion and local decision-making without external processors.\u003c\/p\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eMicrochip Technology\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003eAVR® XMEGA® A3BU\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eCut Tape (CT) | NULL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCore Processor\u003c\/td\u003e \t\u003ctd\u003eAVR\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCore Size\u003c\/td\u003e \t\u003ctd\u003e8\/16-Bit\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSpeed\u003c\/td\u003e \t\u003ctd\u003e32MHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eConnectivity\u003c\/td\u003e \t\u003ctd\u003eI2C, IrDA, SPI, UART\/USART, USB\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePeripherals\u003c\/td\u003e \t\u003ctd\u003eBrown-out Detect\/Reset, DMA, POR, PWM, WDT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of I\/O\u003c\/td\u003e \t\u003ctd\u003e47\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Size\u003c\/td\u003e \t\u003ctd\u003e256KB (128K x 16)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Type\u003c\/td\u003e \t\u003ctd\u003eFLASH\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eEEPROM Size\u003c\/td\u003e \t\u003ctd\u003e4K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eRAM Size\u003c\/td\u003e \t\u003ctd\u003e16K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply (Vcc\/Vdd)\u003c\/td\u003e \t\u003ctd\u003e1.6V ~ 3.6V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eData Converters\u003c\/td\u003e \t\u003ctd\u003eA\/D 16x12b; D\/A 2x12b\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOscillator Type\u003c\/td\u003e \t\u003ctd\u003eInternal\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-40°C ~ 85°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification AEC\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eSurface Mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e64-TQFP (14x14)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e64-TQFP\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1757832376\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdl\u003e\n\u003cdt\u003eQ: What is the maximum operating frequency of the ATXMEGA256A3BU-AUR?\u003c\/dt\u003e\n\u003cdd\u003eA: The device operates at up to 32 MHz, providing high-performance processing for AVR-based applications.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the program memory size?\u003c\/dt\u003e\n\u003cdd\u003eA: It features 256KB of in-system programmable flash memory, organized as 128K x 16 bits.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the supply voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: The operating voltage range is 1.6V to 3.6V, suitable for low-power and battery-operated designs.\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is available?\u003c\/dt\u003e\n\u003cdd\u003eA: This model comes in a 64-pin TQFP package, ideal for space-constrained PCB layouts.\u003c\/dd\u003e\n\u003cdt\u003eQ: Does it include DMA and PWM controllers?\u003c\/dt\u003e\n\u003cdd\u003eA: Yes, it integrates a DMA controller and multiple PWM channels, along with POR, BOD, and WDT for robust operation.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Microchip Technology","offers":[{"title":"Default Title","offer_id":50890009575713,"sku":"ATXMEGA256A3BU-AUR","price":8.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_MCU_150_64A_A_64_61b9be48-199e-48d4-8dea-8f7dd3eb5f51.jpg?v=1739376392","url":"https:\/\/hqickey.com\/products\/atxmega256a3bu-aur","provider":"HQICKEY","version":"1.0","type":"link"}