{"id":3012,"date":"2026-05-29T04:38:58","date_gmt":"2026-05-29T04:38:58","guid":{"rendered":"https:\/\/materialparts.com\/atmega328-au\/"},"modified":"2026-05-30T01:13:03","modified_gmt":"2026-05-30T01:13:03","slug":"atmega328-au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/atmega328-au\/","title":{"rendered":"ATMEGA328-AU"},"content":{"rendered":"

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

The ATMEGA328-AU is an 8-bit AVR RISC microcontroller from Microchip Technology with 32 KB ISP Flash, 2 KB SRAM, 1 KB EEPROM, 23 GPIO lines, and operating frequency up to 20 MHz. It features a rich peripheral set including USART, SPI, I2C, 10-bit ADC, and multiple timers in a compact TQFP-32 package.<\/p>\n

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\u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0627\u062a<\/td>\n8-bit AVR RISC<\/td>\n<\/tr>\n
Max Frequency<\/td>\n20 MHz<\/td>\n<\/tr>\n
Flash Memory<\/td>\n32 KB<\/td>\n<\/tr>\n
SRAM<\/td>\n2 KB<\/td>\n<\/tr>\n
EEPROM<\/td>\n1 KB<\/td>\n<\/tr>\n
ADC<\/td>\n8-channel 10-bit (TQFP\/QFN)<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u0648\u0627\u0635\u0644<\/td>\nUSART, SPI, I2C (TWI)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTQFP-32 (7 x 7 mm)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • 131 powerful instructions, most single clock cycle execution<\/li>\n
  • 32 x 8 general purpose working registers<\/li>\n
  • In-system programming (ISP) via boot program<\/li>\n
  • Read-while-write self-programming Flash<\/li>\n
  • 6 sleep modes for power optimization<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Arduino Uno and compatible boards<\/li>\n
    • Embedded control and automation<\/li>\n
    • Sensor interface and data logging<\/li>\n
    • Motor control and power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATMEGA328-AU is an 8-bit AVR RISC microcontroller from Microchip Technology with 32 KB ISP Flash, 2 KB SRAM, 1 KB EEPROM, 23 GPIO lines, and operating frequency up to 20 MHz. It features a rich peripheral set including USART, SPI, I2C, 10-bit ADC, and multiple timers in a compact TQFP-32 package. Key […]<\/p>\n","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-3012","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, 20 MHz, 32KB Flash, 2KB SRAM, TQFP-32, 1.8-5.5V","date_code":"","package_case":"TQFP-32 (7 x 7 x 1.0 mm)","in_stock":13892,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/Atmel-7810-Automotive-Microcontrollers-ATmega328_Datasheet.pdf","price":"$2.15 @ 1ku","product_introduction":"The ATMEGA328-AU is an 8-bit AVR RISC microcontroller from Microchip Technology, widely known as the heart of the Arduino Uno platform. It combines 32 KB ISP Flash memory with read-while-write capability, 2 KB SRAM, and 1 KB EEPROM in a TQFP-32 package. The device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed. With a comprehensive peripheral set including USART, SPI, I2C, 10-bit ADC, and flexible timer\/PWM modules, it is well-suited for a wide range of embedded control applications.","working_principle":"The ATMEGA328-AU executes instructions from its AVR RISC core with a 2-stage pipeline, achieving near-single-cycle execution for most instructions. The Harvard architecture separates program and data memory buses for concurrent access. The 32 general-purpose registers are directly connected to the ALU, allowing single-cycle register-to-register operations. In-system programming allows firmware updates without removing the device. Multiple sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby) minimize power consumption for battery-operated applications.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>PD3 (INT1\/OC2B)<\/td>I\/O<\/td>Port D, INT1, Timer2 compare B<\/td><\/tr>
      9<\/td>PB6 (XTAL1\/TOSC1)<\/td>I\/O<\/td>Crystal oscillator input<\/td><\/tr>
      10<\/td>PB7 (XTAL2\/TOSC2)<\/td>I\/O<\/td>Crystal oscillator output<\/td><\/tr>
      17<\/td>PB3 (MOSI\/OC2A)<\/td>I\/O<\/td>SPI MOSI, Timer2 compare A<\/td><\/tr>
      18<\/td>PB4 (MISO)<\/td>I\/O<\/td>SPI MISO<\/td><\/tr>
      19<\/td>PB5 (SCK)<\/td>I\/O<\/td>SPI clock<\/td><\/tr>
      23-30<\/td>PC0-PC7<\/td>I\/O<\/td>Port C, ADC0-ADC5, I2C (SDA\/SCL)<\/td><\/tr>
      4,6<\/td>VCC, AVCC<\/td>Power<\/td>Digital and analog supply<\/td><\/tr>
      5,21<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr><\/table>","application_scenarios":"
      • Arduino and compatible development boards<\/li>
      • Embedded sensor interface and data acquisition<\/li>
      • Motor speed control and power management<\/li>
      • Home automation and smart IoT devices<\/li>
      • Consumer electronics and portable instruments<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>ATMEGA328PB-AU<\/td>TQFP-32<\/td>Enhanced version, 2nd SPI\/UART\/I2C<\/td><\/tr>
        Microchip<\/td>ATMEGA328P-AU<\/td>TQFP-32<\/td>picoPower variant, lower consumption<\/td><\/tr>
        Microchip<\/td>ATMEGA328-MU<\/td>QFN-32<\/td>Smaller QFN package<\/td><\/tr>
        GigaDevice<\/td>GD32E230K8U6<\/td>QFN-32<\/td>ARM Cortex-M23, 32-bit upgrade<\/td><\/tr>
        Microchip<\/td>ATMEGA328P-PU<\/td>PDIP-28<\/td>Through-hole DIP version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3012","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=3012"}],"version-history":[{"count":2,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3012\/revisions"}],"predecessor-version":[{"id":3043,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3012\/revisions\/3043"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3012"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3012"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}