{"id":2798,"date":"2026-05-26T01:23:11","date_gmt":"2026-05-26T01:23:11","guid":{"rendered":"https:\/\/materialparts.com\/atmega8a-au\/"},"modified":"2026-05-26T01:23:11","modified_gmt":"2026-05-26T01:23:11","slug":"atmega8a-au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/atmega8a-au\/","title":{"rendered":"ATMEGA8A-AU"},"content":{"rendered":"

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

The ATMEGA8A-AU from Microchip Technology is a low-power CMOS 8-bit AVR RISC microcontroller with 8KB ISP Flash, 512B EEPROM, and 1KB SRAM in a TQFP-32 package. Operating at up to 16MHz with 2.7V to 5.5V supply, it features 23 I\/O pins, 8-channel 10-bit ADC, and multiple communication interfaces including USART, SPI, and TWI.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Flash Memory<\/td>\n8KB<\/td>\n<\/tr>\n
SRAM<\/td>\n1KB<\/td>\n<\/tr>\n
EEPROM<\/td>\n512B<\/td>\n<\/tr>\n
Clock Speed<\/td>\nUp to 16MHz<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n23<\/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, TWI (I2C)<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u0624\u0642\u062a\u0627\u062a<\/td>\n2x 8-bit, 1x 16-bit<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTQFP-32 (7 x 7mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 130 powerful instructions, most single-clock cycle<\/li>\n
  • 32 x 8 general purpose working registers<\/li>\n
  • Up to 16 MIPS throughput at 16MHz<\/li>\n
  • On-chip 2-cycle multiplier<\/li>\n
  • 8KB ISP Flash with read-while-write<\/li>\n
  • True read-while-write operation via boot program<\/li>\n
  • 3 PWM channels<\/li>\n
  • Programmable watchdog timer with on-chip oscillator<\/li>\n
  • 5 software selectable power saving modes<\/li>\n
  • QTouch library support for capacitive touch<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Embedded control in consumer electronics<\/li>\n
    • Motor speed and position control<\/li>\n
    • Sensor interface and data acquisition<\/li>\n
    • Home automation devices<\/li>\n
    • USB interface peripherals<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATMEGA8A-AU from Microchip Technology is a low-power CMOS 8-bit AVR RISC microcontroller with 8KB ISP Flash, 512B EEPROM, and 1KB SRAM in a TQFP-32 package. Operating at up to 16MHz with 2.7V to 5.5V supply, it features 23 I\/O pins, 8-channel 10-bit ADC, and multiple communication interfaces including USART, SPI, and TWI. […]<\/p>\n","protected":false},"author":2,"featured_media":2816,"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-2798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-microchip"],"acf":{"brief_explanation":"8-bit AVR MCU, 8KB Flash, 1KB SRAM, 512B EE, 16MHz, 23 I\/O, TQFP-32","date_code":"","package_case":"TQFP-32 (7 x 7 x 1.0mm)","in_stock":6012,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ATmega8A","price":"$2.28 @ 100u","product_introduction":"The ATMEGA8A-AU from Microchip Technology is a low-power CMOS 8-bit AVR RISC-based microcontroller featuring 8KB of in-system programmable Flash with read-while-write capabilities, 512B EEPROM, and 1KB SRAM. With 23 general purpose I\/O lines, three flexible timer\/counters, internal and external interrupts, a serial programmable USART, a byte-oriented TWI interface, 8-channel 10-bit ADC, and an SPI serial port, it provides a highly flexible and cost-effective solution for many embedded control applications.","working_principle":"The ATMEGA8A uses the AVR enhanced RISC architecture with 130 instructions, most executing in a single clock cycle. The 32 general-purpose registers are directly connected to the ALU, enabling two independent registers to be accessed in one instruction cycle. The Flash memory is divided into application and boot sections, with the boot section supporting read-while-write operation for self-programming. Five sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby) allow fine-grained power management. The calibrated internal RC oscillator provides a default clock source without external components.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>PD3\/INT1<\/td>I\/O<\/td>Port D pin 3 \/ External interrupt 1<\/td><\/tr>
      2<\/td>PD4<\/td>I\/O<\/td>Port D pin 4 \/ XCK<\/td><\/tr>
      3<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      4<\/td>VCC<\/td>Power<\/td>Digital supply voltage<\/td><\/tr>
      5<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      6<\/td>AVCC<\/td>Power<\/td>ADC supply voltage<\/td><\/tr>
      7<\/td>AREF<\/td>Reference<\/td>ADC reference<\/td><\/tr>
      8-15<\/td>PB0-PB7<\/td>I\/O<\/td>Port B: SPI\/Timer\/ADC\/XTAL<\/td><\/tr>
      16-23<\/td>PC0-PC7<\/td>I\/O<\/td>Port C: ADC\/TWI\/RESET<\/td><\/tr>
      24-28<\/td>PD0-PD4<\/td>I\/O<\/td>Port D: USART\/INT\/Timer<\/td><\/tr>
      29-32<\/td>PD5-PD7<\/td>I\/O<\/td>Port D: Timer\/PWM\/AIN<\/td><\/tr><\/table>","application_scenarios":"
      • Consumer electronics embedded controllers<\/li>
      • Motor drive and position feedback systems<\/li>
      • Temperature and pressure sensor interfaces<\/li>
      • Home automation sensor nodes<\/li>
      • USB peripheral device controllers<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>ATMEGA8A-PU<\/td>PDIP-28<\/td>Through-hole version<\/td><\/tr>
        Microchip<\/td>ATMEGA8A-MU<\/td>QFN-32<\/td>Same specs, QFN package<\/td><\/tr>
        Microchip<\/td>ATMEGA16A-AU<\/td>TQFP-44<\/td>16KB Flash upgrade<\/td><\/tr>
        Microchip<\/td>ATtiny88-AU<\/td>TQFP-32<\/td>8KB Flash, pin-compatible<\/td><\/tr>
        ST<\/td>STM8S003F3P6<\/td>TSSOP-20<\/td>8-bit alternative, 8KB Flash<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2798","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=2798"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2798\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media\/2816"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=2798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=2798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=2798"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=2798"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}