{"id":2796,"date":"2026-05-26T01:23:08","date_gmt":"2026-05-26T01:23:08","guid":{"rendered":"https:\/\/materialparts.com\/atmega64a-au\/"},"modified":"2026-05-26T01:23:08","modified_gmt":"2026-05-26T01:23:08","slug":"atmega64a-au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/atmega64a-au\/","title":{"rendered":"ATMEGA64A-AU"},"content":{"rendered":"

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

The ATMEGA64A-AU from Microchip Technology is a high-performance, low-power 8-bit AVR RISC-based microcontroller with 64KB ISP Flash, 2KB EEPROM, and 4KB SRAM in a TQFP-64 package. It operates at up to 16MHz with 2.7V to 5.5V supply, featuring JTAG interface, 8-channel 10-bit ADC, and multiple communication interfaces.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Flash Memory<\/td>\n64KB<\/td>\n<\/tr>\n
SRAM<\/td>\n4KB<\/td>\n<\/tr>\n
EEPROM<\/td>\n2KB<\/td>\n<\/tr>\n
Clock Speed<\/td>\nUp to 16MHz<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n53<\/td>\n<\/tr>\n
ADC Channels<\/td>\n8-channel 10-bit<\/td>\n<\/tr>\n
\u4ea4\u6d41<\/td>\nUSART, SPI, TWI (I2C)<\/td>\n<\/tr>\n
\u8ba1\u65f6\u5668<\/td>\n2x 8-bit, 2x 16-bit<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTQFP-64 (14 x 14mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 131 powerful instructions, most single-clock cycle execution<\/li>\n
  • 32 x 8 general purpose working registers<\/li>\n
  • Up to 16 MIPS throughput at 16MHz<\/li>\n
  • JTAG (IEEE 1149.1) interface for debug and programming<\/li>\n
  • 8-channel 10-bit ADC with optional differential input<\/li>\n
  • 4 PWM channels<\/li>\n
  • Programmable watchdog timer with on-chip oscillator<\/li>\n
  • Six software selectable power saving modes<\/li>\n
  • QTouch library support for capacitive touch sensing<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial control systems<\/li>\n
    • Motor control and drive applications<\/li>\n
    • Automotive body electronics<\/li>\n
    • Consumer electronics<\/li>\n
    • Embedded networking<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATMEGA64A-AU from Microchip Technology is a high-performance, low-power 8-bit AVR RISC-based microcontroller with 64KB ISP Flash, 2KB EEPROM, and 4KB SRAM in a TQFP-64 package. It operates at up to 16MHz with 2.7V to 5.5V supply, featuring JTAG interface, 8-channel 10-bit ADC, and multiple communication interfaces. Key Specifications Flash Memory 64KB SRAM […]<\/p>\n","protected":false},"author":2,"featured_media":2815,"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-2796","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, 64KB Flash, 4KB SRAM, 2KB EE, 16MHz, 53 I\/O, JTAG, TQFP-64","date_code":"","package_case":"TQFP-64 (14 x 14 x 1.0mm)","in_stock":14149,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ATmega64A","price":"$5.10 @ 1ku","product_introduction":"The ATMEGA64A-AU from Microchip Technology is a high-performance, low-power 8-bit AVR RISC microcontroller featuring 64KB of in-system programmable Flash with read-while-write capability, 2KB EEPROM, and 4KB SRAM. It provides 53 programmable I\/O lines, a JTAG interface for on-chip debugging and boundary-scan, 8-channel 10-bit ADC, multiple communication interfaces (USART, SPI, TWI), and flexible timer\/counters with compare and PWM modes. The device operates from 2.7V to 5.5V at up to 16MHz.","working_principle":"The ATMEGA64A is based on the AVR enhanced RISC architecture with 131 instructions, most executing in a single clock cycle. The CPU core includes an ALU with 32 general-purpose registers directly connected, enabling two independent registers to be accessed in one instruction cycle. Memory is organized with Harvard architecture separating program Flash and data SRAM. The JTAG interface provides on-chip debug capabilities and Flash programming. Six sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby) optimize power consumption for different application scenarios.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-8<\/td>PA0-PA7<\/td>I\/O<\/td>Port A: ADC channels \/ digital I\/O<\/td><\/tr>
      9-16<\/td>PB0-PB7<\/td>I\/O<\/td>Port B: Timer\/PWM\/SPI digital I\/O<\/td><\/tr>
      17-24<\/td>PC0-PC7<\/td>I\/O<\/td>Port C: JTAG\/TWI digital I\/O<\/td><\/tr>
      25-32<\/td>PD0-PD7<\/td>I\/O<\/td>Port D: USART\/INT digital I\/O<\/td><\/tr>
      33-40<\/td>PE0-PE7<\/td>I\/O<\/td>Port E: Timer\/INT\/TWI digital I\/O<\/td><\/tr>
      41-48<\/td>PF0-PF7<\/td>I\/O<\/td>Port F: ADC digital I\/O<\/td><\/tr>
      49-56<\/td>PG0-PG7<\/td>I\/O<\/td>Port G: SPM\/OSC digital I\/O<\/td><\/tr>
      57<\/td>RESET<\/td>Input<\/td>Active-low reset<\/td><\/tr>
      58<\/td>VCC<\/td>Power<\/td>Digital supply voltage<\/td><\/tr>
      59<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      60<\/td>AVCC<\/td>Power<\/td>ADC supply voltage<\/td><\/tr>
      61<\/td>AREF<\/td>Reference<\/td>ADC reference voltage<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial automation controllers with JTAG debug<\/li>
      • Motor drive and power management systems<\/li>
      • Building automation and HVAC controllers<\/li>
      • Embedded networking gateways<\/li>
      • Consumer appliance control boards<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>ATMEGA128A-AU<\/td>TQFP-64<\/td>128KB Flash, pin-compatible upgrade<\/td><\/tr>
        Microchip<\/td>ATMEGA64A-MU<\/td>QFN-64<\/td>Same specs, QFN package<\/td><\/tr>
        Microchip<\/td>ATMEGA644P-20AU<\/td>TQFP-44<\/td>64KB Flash, smaller package<\/td><\/tr>
        Renesas<\/td>R5F563NBDDFP<\/td>TQFP-64<\/td>RL78 alternative, 64KB Flash<\/td><\/tr>
        ST<\/td>STM32F103C8T6<\/td>LQFP-48<\/td>ARM Cortex-M3, 64KB Flash<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2796","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=2796"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2796\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2815"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2796"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}