{"id":6791,"date":"2026-06-21T12:24:48","date_gmt":"2026-06-21T12:24:48","guid":{"rendered":"https:\/\/materialparts.com\/atxmega128a1u-au\/"},"modified":"2026-06-21T12:24:48","modified_gmt":"2026-06-21T12:24:48","slug":"atxmega128a1u-au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/atxmega128a1u-au\/","title":{"rendered":"ATXMEGA128A1U-AU"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The ATXMEGA128A1U-AU from Microchip Technology is an 8\/16-bit AVR XMEGA microcontroller with 128 KB Flash, 8 KB SRAM, USB 2.0 full-speed device, and 32 MHz maximum frequency in a TQFP-64 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\n8\/16-bit AVR XMEGA Microcontroller with USB<\/td>\n<\/tr>\n
CPU<\/td>\nAVR XMEGA, up to 32 MHz<\/td>\n<\/tr>\n
\u95ea\u5149\u706f<\/td>\n128 KB<\/td>\n<\/tr>\n
SRAM<\/td>\n8 KB<\/td>\n<\/tr>\n
EEPROM<\/td>\n2 KB<\/td>\n<\/tr>\n
USB<\/td>\n2.0 Full-Speed Device<\/td>\n<\/tr>\n
ADC<\/td>\n12-bit, 2 MHz, 16 channels<\/td>\n<\/tr>\n
\u53d1\u63f4\u4f1a<\/td>\n12-bit, 2 channels<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.6 V to 3.6 V<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTQFP-64 (10 x 10 mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +85C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 128 KB Flash with 8 KB SRAM and 2 KB EEPROM<\/li>\n
  • Integrated USB 2.0 full-speed device controller<\/li>\n
  • 12-bit ADC at 2 MSPS with 16 channels<\/li>\n
  • 12-bit DAC with 2 channels<\/li>\n
  • 4 USART, 2 SPI, 2 TWI interfaces<\/li>\n
  • Event system for peripheral interconnection<\/li>\n
  • DMA controller for CPU-free data transfers<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • USB peripheral devices and custom HID<\/li>\n
    • Industrial data acquisition and control<\/li>\n
    • Medical monitoring instruments<\/li>\n
    • Consumer electronics with USB connectivity<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATXMEGA128A1U-AU from Microchip Technology is an 8\/16-bit AVR XMEGA microcontroller with 128 KB Flash, 8 KB SRAM, USB 2.0 full-speed device, and 32 MHz maximum frequency in a TQFP-64 package. Key Specifications Type 8\/16-bit AVR XMEGA Microcontroller with USB CPU AVR XMEGA, up to 32 MHz Flash 128 KB SRAM 8 KB […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[134],"class_list":["post-6791","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-microchip"],"acf":{"brief_explanation":"AVR XMEGA MCU, 32MHz, 128KB Flash, USB 2.0 FS, 12b ADC\/DAC, TQFP-64","date_code":"","package_case":"TQFP-64 (10 x 10 x 1.2 mm)","in_stock":8765,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/Atmel-8331-8-and-16-bit-AVR-Microcontroller-XMEGA-AU_Manual.pdf","price":"$5.82 @ 1ku","product_introduction":"The ATXMEGA128A1U-AU from Microchip Technology is an 8\/16-bit AVR XMEGA microcontroller with integrated USB 2.0 full-speed device controller. The device combines 128 KB Flash, 8 KB SRAM, and 2 KB EEPROM with a rich analog peripheral set including a 12-bit 2 MSPS ADC and 12-bit dual-channel DAC. The XMEGA event system allows peripherals to interact without CPU intervention, reducing latency and power consumption. The DMA controller enables CPU-free data transfers between peripherals and memory. Four USART, two SPI, and two TWI interfaces provide flexible connectivity. The USB controller supports full-speed (12 Mbps) device operation with integrated transceiver.","working_principle":"The ATXMEGA128A1U-AU uses the AVR enhanced RISC architecture with most instructions executing in a single clock cycle. The XMEGA architecture extends the classic AVR with an event system that allows peripherals to trigger actions in other peripherals without CPU intervention, reducing response latency. The DMA controller can transfer data between memory and peripherals autonomously. The integrated USB 2.0 full-speed device controller handles USB protocol timing and packet formatting, requiring minimal CPU overhead. The USB controller includes a dedicated FIFO buffer for endpoint data. The 12-bit ADC uses a successive approximation register (SAR) architecture with a pipelined front-end achieving 2 MSPS throughput. The 12-bit DAC uses an R-2R ladder network with rail-to-rail output buffer.","pin_description":"
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>AVCC<\/td>Power<\/td>Analog supply voltage<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      3<\/td>PORTA0-7<\/td>I\/O<\/td>General purpose I\/O Port A<\/td><\/tr>
      11<\/td>PORTB0-7<\/td>I\/O<\/td>General purpose I\/O Port B<\/td><\/tr>
      19<\/td>PORTC0-7<\/td>I\/O<\/td>General purpose I\/O Port C<\/td><\/tr>
      27<\/td>PORTD0-7<\/td>I\/O<\/td>General purpose I\/O Port D<\/td><\/tr>
      35<\/td>PORTE0-7<\/td>I\/O<\/td>General purpose I\/O Port E (USB D+\/D-)<\/td><\/tr>
      43<\/td>PORTF0-7<\/td>I\/O<\/td>General purpose I\/O Port F (ADC inputs)<\/td><\/tr>
      51<\/td>PORTQ0-3<\/td>I\/O<\/td>General purpose I\/O Port Q<\/td><\/tr>
      55<\/td>PORTR0-2<\/td>I\/O<\/td>General purpose I\/O Port R<\/td><\/tr>
      61<\/td>VCC<\/td>Power<\/td>Digital supply voltage (1.6-3.6V)<\/td><\/tr><\/table>","application_scenarios":"
      • USB custom HID device for industrial control interface<\/li>
      • Data acquisition system with 12-bit ADC and USB data upload<\/li>
      • Medical monitoring instrument with USB connectivity<\/li>
      • Audio USB device using integrated 12-bit DAC<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>ATXMEGA128A1U-AT<\/td>TQFP-64<\/td>Tape and reel version<\/td><\/tr>
        Microchip<\/td>ATXMEGA64A1U-AU<\/td>TQFP-64<\/td>64KB Flash, same peripherals<\/td><\/tr>
        Microchip<\/td>ATXMEGA256A3U-AU<\/td>TQFP-64<\/td>256KB Flash, same family<\/td><\/tr>
        NXP<\/td>LPC11U37HBD64<\/td>LQFP-64<\/td>ARM Cortex-M0, USB, similar class<\/td><\/tr>
        ST<\/td>STM32F103C8T6<\/td>LQFP-48<\/td>ARM Cortex-M3, USB FS<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6791","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6791"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6791\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6791"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6791"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6791"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6791"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}