{"id":10364,"date":"2026-07-19T12:47:16","date_gmt":"2026-07-19T12:47:16","guid":{"rendered":"https:\/\/ic-vendor.com\/atmega128l-8au\/"},"modified":"2026-07-19T12:47:16","modified_gmt":"2026-07-19T12:47:16","slug":"atmega128l-8au","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/atmega128l-8au\/","title":{"rendered":"ATMEGA128L-8AU"},"content":{"rendered":"

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

The ATMEGA128L-8AU is a high-performance, low-power 8-bit AVR RISC microcontroller from Microchip with 128KB ISP Flash, 4KB EEPROM, and 4KB SRAM. The ‘L’ suffix denotes low-voltage operation (2.7-5.5V) at speeds up to 8MHz, housed in a 64-pin TQFP package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nAVR RISC<\/td>\n<\/tr>\n
Core Size<\/td>\n8-bit<\/td>\n<\/tr>\n
Max Frequency<\/td>\n8MHz (L variant)<\/td>\n<\/tr>\n
\u7a0b\u5e8f\u5185\u5b58<\/td>\n128KB Flash (ISP, Read-While-Write)<\/td>\n<\/tr>\n
EEPROM<\/td>\n4KB<\/td>\n<\/tr>\n
SRAM<\/td>\n4KB<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n53<\/td>\n<\/tr>\n
\u8ba1\u65f6\u5668<\/td>\n2 x 8-bit, 2 x 16-bit<\/td>\n<\/tr>\n
USART<\/td>\n2<\/td>\n<\/tr>\n
SPI<\/td>\n1<\/td>\n<\/tr>\n
I2C (TWI)<\/td>\n1<\/td>\n<\/tr>\n
ADC<\/td>\n8-ch 10-bit<\/td>\n<\/tr>\n
PWM<\/td>\n6 channels (2-16 bit resolution)<\/td>\n<\/tr>\n
JTAG<\/td>\nYes (debug + programming)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n64-TQFP (14x14mm)<\/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
  • Up to 8 MIPS throughput at 8MHz<\/li>\n
  • 133 powerful instructions, most single-cycle execution<\/li>\n
  • 32 x 8 general purpose working registers<\/li>\n
  • Read-While-Write Flash (self-programming)<\/li>\n
  • On-chip 2-cycle hardware multiplier<\/li>\n
  • 6 software-selectable sleep modes<\/li>\n
  • Programmable brown-out detection<\/li>\n
  • Up to 64KB external memory expansion<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial automation and control<\/li>\n
    • Motor drive and power electronics<\/li>\n
    • Networking and communication equipment<\/li>\n
    • Medical devices and instrumentation<\/li>\n
    • Automotive body electronics<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATMEGA128L-8AU is a high-performance, low-power 8-bit AVR RISC microcontroller from Microchip with 128KB ISP Flash, 4KB EEPROM, and 4KB SRAM. The ‘L’ suffix denotes low-voltage operation (2.7-5.5V) at speeds up to 8MHz, housed in a 64-pin TQFP package. Key Specifications Core AVR RISC Core Size 8-bit Max Frequency 8MHz (L variant) Program […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[1657,1658,1656],"chip_brand":[134],"class_list":["post-10364","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","tag-atmega128l-8au","tag-avr-mcu","tag-microcontroller","chip_brand-microchip"],"acf":{"brief_explanation":"AVR 8-bit MCU, 128KB Flash, 4KB EEPROM, 4KB SRAM, 8MHz, 53 I\/O, 64-TQFP, 2.7-5.5V","date_code":"","package_case":"64-TQFP (14x14mm)","in_stock":4500,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ATMEGA128","price":"","product_introduction":"The ATMEGA128L-8AU is a high-performance, low-power 8-bit AVR RISC microcontroller from Microchip featuring 128KB of ISP Flash with Read-While-Write capability, 4KB EEPROM, and 4KB SRAM. The 'L' variant operates from 2.7V to 5.5V at speeds up to 8MHz, achieving up to 8 MIPS throughput. With 53 I\/O pins, dual USARTs, SPI, TWI (I2C), 8-channel 10-bit ADC, 4 flexible timers with PWM, and JTAG interface for on-chip debugging, it provides comprehensive peripheral integration for complex embedded applications.","working_principle":"The AVR core executes 133 instructions with most completing in a single clock cycle, achieving near 1 MIPS per MHz throughput. The 32 general-purpose working registers are directly connected to the ALU, allowing single-cycle access to any two registers. Flash memory supports Read-While-Write for self-programming (boot loader). The JTAG interface provides on-chip debugging and Flash\/EEPROM programming. Two 8-bit and two 16-bit timers with PWM support motor control and timing applications. The 8-channel 10-bit ADC with optional differential input and programmable gain handles analog sensing. Six sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby) optimize power consumption.","pin_description":"
      Port<\/th>Pins<\/th>Key Alternate Functions<\/th><\/tr>
      PORTA<\/td>8 pins<\/td>External memory AD0-AD7<\/td><\/tr>
      PORTB<\/td>8 pins<\/td>SPI, OC0\/OC1A\/OC1B\/OC2, ALE<\/td><\/tr>
      PORTC<\/td>8 pins<\/td>External memory A8-A15<\/td><\/tr>
      PORTD<\/td>8 pins<\/td>USART1, INT0-INT7<\/td><\/tr>
      PORTE<\/td>8 pins<\/td>USART0, INT, T1\/T3, XCK<\/td><\/tr>
      PORTF<\/td>8 pins<\/td>ADC0-ADC7, JTAG (TDI\/TDO\/TMS\/TCK)<\/td><\/tr>
      PORTG<\/td>5 pins<\/td>TOSC1\/TOSC2, WR\/RD, ALE<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial PLC, CNC, and motor drive control<\/li>\n
      • Networking equipment MAC-side processing<\/li>\n
      • Medical device data acquisition and display<\/li>\n
      • Automotive body domain controller<\/li>\n
      • Building automation and HVAC control<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Flash<\/th>Notes<\/th><\/tr>
        Microchip<\/td>ATMEGA128-16AU<\/td>128KB<\/td>16MHz, 4.5-5.5V version<\/td><\/tr>
        Microchip<\/td>ATMEGA1284P-20AU<\/td>128KB<\/td>16KB SRAM, 20MHz, pin-compatible<\/td><\/tr>
        Microchip<\/td>AVR128DA64<\/td>128KB<\/td>AVR Dx modern replacement<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10364"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10364\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10364"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}