{"id":5733,"date":"2026-06-11T04:13:42","date_gmt":"2026-06-11T04:13:42","guid":{"rendered":"https:\/\/materialparts.com\/atxmega32a4-au\/"},"modified":"2026-06-12T03:07:39","modified_gmt":"2026-06-12T03:07:39","slug":"atxmega32a4-au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/atxmega32a4-au\/","title":{"rendered":"ATXMEGA32A4-AU"},"content":{"rendered":"

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

The ATXMEGA32A4-AU from Microchip is an AVR XMEGA MCU with 32KB Flash, 4KB SRAM, 1KB EEPROM, 12-bit ADC\/DAC, and event system in TQFP-44 for mixed-signal applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n
\u5305\u88c5<\/td>\nTQFP-44 (10x10mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATXMEGA32A4-AU from Microchip is an AVR XMEGA MCU with 32KB Flash, 4KB SRAM, 1KB EEPROM, 12-bit ADC\/DAC, and event system in TQFP-44 for mixed-signal applications. Key Specifications Package TQFP-44 (10x10mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[134],"class_list":["post-5733","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-microchip"],"acf":{"brief_explanation":"8\/16-bit AVR XMEGA MCU, 32KB Flash, 44-TQFP","date_code":"","package_case":"TQFP-44 (10x10mm)","in_stock":3136,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ATXMEGA32A4","price":"$3.50 @ 1ku","product_introduction":"The ATXMEGA32A4-AU from Microchip is an AVR XMEGA MCU with 32KB Flash, 4KB SRAM, 1KB EEPROM, 12-bit ADC\/DAC, and event system in TQFP-44 for mixed-signal applications.","working_principle":"The ATXMEGA32A4-AU is an 8\/16-bit AVR XMEGA microcontroller from Microchip in TQFP-44, running at 32MHz with 32KB Flash and 2KB SRAM. The XMEGA architecture extends the classic AVR with a more modular peripheral system and DMA controller. The Event System is a key XMEGA feature: 8 event channels allow peripherals to trigger actions in other peripherals without CPU intervention. For example, a timer overflow can trigger an ADC conversion, which triggers a DMA transfer to SRAM, all autonomously. The 12-bit ADC (ADC0\/ADC1) supports up to 1Msps with hardware oversampling (up to 16x for effective 13-bit resolution). Four DAC channels (2 x 12-bit on DAC0\/DAC1) provide analog output capability rare in 8-bit MCUs. Four USARTs support UART, SPI (master mode), and LIN protocols. Two TWI (I2C) interfaces operate as master or slave at up to 400kHz. The Crypto module provides AES-128\/256 and DES encryption\/decryption in hardware (8 clock cycles for AES-128). The PDI (Program and Debug Interface) replaces the classic ISP interface, providing faster programming (up to 2MHz clock). The 32kHz crystal oscillator on TOSC1\/TOSC2 (PR0\/PR1 pins) provides accurate RTC timing. The device includes a calibration row with oscillator calibration values for 2MHz and 32MHz internal RC oscillators. The -AU suffix specifies TQFP-44, industrial temperature (-40C to +85C).","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-8<\/td>PA0-PA7<\/td>I\/O<\/td>Port A (GPIO\/ADC0\/AC0\/DAC0\/RTC\/Event)<\/td><\/tr>
      9-16<\/td>PB0-PB7<\/td>I\/O<\/td>Port B (GPIO\/ADC1\/AC1\/USART0\/SPIC\/Event)<\/td><\/tr>
      17-24<\/td>PC0-PC7<\/td>I\/O<\/td>Port C (GPIO\/USART0\/TWI\/Event\/LED\/LIN)<\/td><\/tr>
      25-32<\/td>PD0-PD7<\/td>I\/O<\/td>Port D (GPIO\/USART1\/SPID\/TC\/TWI\/Event)<\/td><\/tr>
      33-40<\/td>PE0-PE7<\/td>I\/O<\/td>Port E (GPIO\/ADC2\/AC2\/DAC1\/USART0)<\/td><\/tr>
      41-44<\/td>PR0-PR1\/PDI\/VCC\/GND<\/td>I\/O\/Power<\/td>Port R (32kHz OSC), PDI debug, power<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Power management<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Microchip<\/td>ATXMEGA64A4-AU<\/td>TQFP-44<\/td>64KB Flash version, double density<\/td><\/tr>
      Microchip<\/td>ATXMEGA128A4-AU<\/td>TQFP-44<\/td>128KB Flash version, quadruple density<\/td><\/tr>
      Microchip<\/td>ATXMEGA32A4U-AU<\/td>TQFP-44<\/td>Same with USB 2.0 Full-Speed<\/td><\/tr>
      Microchip<\/td>ATMEGA328P-AU<\/td>TQFP-32<\/td>Classic AVR, 32KB Flash, no XMEGA features<\/td><\/tr>
      STMicroelectronics<\/td>STM32F103C8T6<\/td>LQFP-48<\/td>ARM Cortex-M3 alternative, 72MHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5733","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=5733"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5733\/revisions"}],"predecessor-version":[{"id":6083,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5733\/revisions\/6083"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5733"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}