{"id":5557,"date":"2026-06-11T02:52:05","date_gmt":"2026-06-11T02:52:05","guid":{"rendered":"https:\/\/materialparts.com\/atmega644pa-aur\/"},"modified":"2026-06-12T09:10:47","modified_gmt":"2026-06-12T09:10:47","slug":"atmega644pa-aur","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/atmega644pa-aur\/","title":{"rendered":"ATMEGA644PA-AUR"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The ATMEGA644PA-AUR from Microchip is a low-power 8-bit AVR microcontroller with 64KB Flash, 4KB SRAM, and rich peripherals in 44-TQFP for embedded control applications.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTQFP-44 (10x10mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Automotive electronics<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATMEGA644PA-AUR from Microchip is a low-power 8-bit AVR microcontroller with 64KB Flash, 4KB SRAM, and rich peripherals in 44-TQFP for embedded control applications. Key Specifications Package TQFP-44 (10x10mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/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-5557","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-microchip"],"acf":{"brief_explanation":"8-bit AVR MCU, 64KB Flash, 4KB SRAM, 44-TQFP","date_code":"","package_case":"TQFP-44 (10x10mm)","in_stock":10279,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ATMEGA644PA","price":"$4.20 @ 1ku","product_introduction":"The ATMEGA644PA-AUR from Microchip is a low-power 8-bit AVR microcontroller with 64KB Flash, 4KB SRAM, and rich peripherals in 44-TQFP for embedded control applications.","working_principle":"The ATMEGA644PA-AUR is an 8-bit AVR microcontroller from Microchip in TQFP-44, running at 20MHz with 64KB Flash, 4KB SRAM, and 2KB EEPROM. The -PA suffix indicates picoPower technology: the device draws 0.1uA in power-save mode and 0.5uA in power-down mode, 10x lower than the original ATMEGA644P. The 64KB Flash supports 10,000 write\/erase cycles with 20-year data retention. The 10-bit ADC has 8 channels with 15ksps and auto-trigger from timer events. Two 8-bit timers (Timer0, Timer2) and one 16-bit timer (Timer1) provide 6 channels of PWM, input capture, and real-time clock. The USART supports serial at up to 2Mbps with framing error detection. The SPI port runs at up to 10MHz in master mode. The I2C\/TWI interface supports 400kHz. The JTAG interface provides in-circuit debugging and boundary-scan testing. The device includes: analog comparator, watchdog timer, brown-out detection (programmable at 1.8V\/2.7V\/4.3V), and on-chip calibrated RC oscillator (8MHz +\/-10%). The picoPower features include: clock prescaler for reducing power during low-activity periods, interrupt-driven wake-up from all sleep modes, and ADC noise reduction mode (sleeps CPU during ADC conversion). The -AUR suffix specifies TQFP-44, industrial temperature (-40C to +85C). The ATMEGA644PA is popular in Arduino Mega-compatible designs and industrial control applications requiring 64KB Flash.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>PA0\/ADC0<\/td>I\/O<\/td>Port A0 (GPIO\/ADC channel 0)<\/td><\/tr>
      2-8<\/td>PA1-PA7<\/td>I\/O<\/td>Port A (GPIO\/ADC channels 1-7)<\/td><\/tr>
      9<\/td>PB0\/T0\/CLKO<\/td>I\/O<\/td>Port B0 (GPIO\/Timer0 counter input\/Clock output)<\/td><\/tr>
      10-14<\/td>PB1-PB5<\/td>I\/O<\/td>Port B (GPIO\/OC\/INT\/MOSI\/MISO\/SCK\/SS)<\/td><\/tr>
      15-16<\/td>PB6-PB7<\/td>I\/O<\/td>Port B (GPIO\/XTAL1\/XTAL2\/TOSC1\/TOSC2)<\/td><\/tr>
      17-24<\/td>PC0-PC7<\/td>I\/O<\/td>Port C (GPIO\/JTAG\/SMC\/TWSI\/OC)<\/td><\/tr>
      25-32<\/td>PD0-PD7<\/td>I\/O<\/td>Port D (GPIO\/USART\/INT0-1\/OC\/AIN\/T1)<\/td><\/tr>
      33-40<\/td>AVCC\/AREF\/GND\/VCC<\/td>Power<\/td>Analog supply, analog reference, ground, digital supply<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Automotive electronics<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Microchip<\/td>ATMEGA644PA-AUR<\/td>TQFP-44<\/td>Same device, Microchip brand<\/td><\/tr>
      Microchip<\/td>ATMEGA644P-20AU<\/td>TQFP-44<\/td>Non-PA version, higher power consumption<\/td><\/tr>
      Microchip<\/td>ATMEGA1284P-AU<\/td>TQFP-44<\/td>128KB Flash version, double density<\/td><\/tr>
      Microchip<\/td>ATMEGA324PA-AU<\/td>TQFP-44<\/td>32KB Flash version, lower cost<\/td><\/tr>
      STMicroelectronics<\/td>STM32F103C8T6<\/td>LQFP-48<\/td>ARM Cortex-M3, 64KB Flash, 32-bit alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=5557"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5557\/revisions"}],"predecessor-version":[{"id":6141,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5557\/revisions\/6141"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5557"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5557"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}