{"id":7056,"date":"2026-06-23T02:56:12","date_gmt":"2026-06-23T02:56:12","guid":{"rendered":"https:\/\/materialparts.com\/atmega32l-8au\/"},"modified":"2026-06-23T02:56:12","modified_gmt":"2026-06-23T02:56:12","slug":"atmega32l-8au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/atmega32l-8au\/","title":{"rendered":"ATMEGA32L-8AU"},"content":{"rendered":"

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

The ATMEGA32L-8AU from Microchip Technology (formerly Atmel) is a high-performance, low-power 8-bit AVR RISC microcontroller with 32 kB ISP flash, 2 kB SRAM, and 1 kB EEPROM in a 44-pin TQFP package. Operating at up to 8 MHz with a supply range of 2.7 V to 5.5 V, it features a JTAG interface, 8-channel 10-bit ADC, USART, SPI, I2C, and 32 I\/O lines, making it ideal for embedded control applications requiring low-voltage operation.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
CPU Core<\/td>\nAVR 8-bit RISC<\/td>\n<\/tr>\n
Max Clock Speed<\/td>\n8 MHz<\/td>\n<\/tr>\n
Flash Memory<\/td>\n32 kB (ISP, read-while-write)<\/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<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n32<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.7 V to 5.5 V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTQFP-44<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 131 powerful instructions with most single-clock cycle execution<\/li>\n
  • 32 x 8 general purpose working registers for efficient C-code execution<\/li>\n
  • JTAG interface for boundary-scan and on-chip debugging\/programming<\/li>\n
  • Three flexible timer\/counters with compare modes and PWM<\/li>\n
  • Programmable serial USART, SPI, and Two-wire (I2C) interfaces<\/li>\n
  • Five software selectable power saving modes including Idle, ADC Noise Reduction, and Power-down<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial control and monitoring systems<\/li>\n
    • \u6d88\u8d39\u7535\u5b50\u4ea7\u54c1\u548c\u5bb6\u7528\u7535\u5668<\/li>\n
    • Battery-powered devices with low-voltage operation<\/li>\n
    • Motor control and power management<\/li>\n
    • Automotive accessories and lighting control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATMEGA32L-8AU from Microchip Technology (formerly Atmel) is a high-performance, low-power 8-bit AVR RISC microcontroller with 32 kB ISP flash, 2 kB SRAM, and 1 kB EEPROM in a 44-pin TQFP package. Operating at up to 8 MHz with a supply range of 2.7 V to 5.5 V, it features a JTAG interface, […]<\/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":[],"chip_brand":[134],"class_list":["post-7056","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-microchip"],"acf":{"brief_explanation":"8MHz AVR 8-bit MCU, 32kB Flash, 2kB SRAM, 1kB EEPROM, 10-bit ADC, JTAG, TQFP-44, 2.7-5.5V","date_code":"","package_case":"TQFP-44 (10 x 10 x 1.2 mm)","in_stock":11200,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/Atmel-8155-8-bit-AVR-ATmega32L_Datasheet.pdf","price":"$5.91 @ 100+","product_introduction":"The ATMEGA32L-8AU is a low-power 8-bit AVR RISC microcontroller from Microchip Technology featuring 32 kB of in-system programmable flash with read-while-write capability, 1 kB EEPROM, and 2 kB internal SRAM. Based on the AVR enhanced RISC architecture, it executes most instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz at 8 MHz. The device integrates an 8-channel 10-bit ADC, a programmable USART, Master\/Slave SPI serial interface, and a Two-wire serial interface (I2C compatible). A JTAG interface provides access to on-chip debugging and boundary-scan capabilities. Five power saving modes (Idle, ADC Noise Reduction, Power-save, Power-down, and Standby) minimize power consumption in battery-operated applications. The low-voltage 'L' variant operates from 2.7 V to 5.5 V at up to 8 MHz.","working_principle":"The ATMEGA32L-8AU is based on the AVR enhanced RISC Harvard architecture with separate instruction and data memories. (1) CPU Core: A two-stage pipeline (fetch\/execute) achieves single-cycle instruction execution for most operations. 32 x 8-bit general purpose registers are directly connected to the ALU, allowing two registers to be accessed in one instruction cycle. (2) Memory Subsystem: 32 kB flash stores program code with ISP capability via SPI. 2 kB SRAM provides data storage, and 1 kB EEPROM offers non-volatile data retention with 100,000 write\/erase cycle endurance. (3) Peripheral Subsystem: Three timer\/counters (two 8-bit, one 16-bit) provide PWM generation, input capture, and output compare functions. The 10-bit SAR ADC converts analog inputs in 65-260 \u03bcs. Communication peripherals include USART with hardware flow control, SPI at up to 4 MHz, and I2C at up to 400 kHz. (4) Power Management: Five sleep modes trade off functionality versus power consumption. Power-down mode halts the CPU and peripherals, retaining only EEPROM and register contents, consuming less than 1 \u03bcA.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>PB5\/MOSI\/OC1A<\/td>I\/O<\/td>Port B, SPI MOSI, Timer1 Output Compare A<\/td><\/tr>
      2<\/td>PB6\/MISO<\/td>I\/O<\/td>Port B, SPI MISO<\/td><\/tr>
      3<\/td>PB7\/SCK\/OC1C<\/td>I\/O<\/td>Port B, SPI Clock, Timer1 Output Compare C<\/td><\/tr>
      4<\/td>\/RESET<\/td>Input<\/td>Active low reset<\/td><\/tr>
      5<\/td>PD0\/RXD<\/td>I\/O<\/td>Port D, USART RX<\/td><\/tr>
      6<\/td>PD1\/TXD<\/td>I\/O<\/td>Port D, USART TX<\/td><\/tr>
      7<\/td>PD2\/INT0<\/td>I\/O<\/td>Port D, External Interrupt 0<\/td><\/tr>
      8<\/td>PD3\/INT1\/OC2<\/td>I\/O<\/td>Port D, External Interrupt 1, Timer2 PWM<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial control and monitoring with multi-channel ADC and serial communication<\/li>
      • Battery-powered devices and portable instruments requiring low-voltage 2.7V operation<\/li>
      • Consumer electronics and home appliances with cost-effective 8-bit processing<\/li>
      • Motor control and PWM-based power management in embedded systems<\/li>
      • Automotive accessories and lighting control with JTAG debug capability<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>ATMEGA32A-8AU<\/td>TQFP-44<\/td>Direct replacement, 16MHz max<\/td><\/tr>
        Microchip<\/td>ATMEGA324PA-8AU<\/td>TQFP-44<\/td>32KB Flash, dual USART, newer<\/td><\/tr>
        Microchip<\/td>ATMEGA164PA-8AU<\/td>TQFP-44<\/td>16KB Flash, lower cost<\/td><\/tr>
        STMicroelectronics<\/td>STM8S207M8T6<\/td>LQFP-48<\/td>8-bit, 24MHz, 64KB Flash<\/td><\/tr>
        Renesas<\/td>R5F100LGAFA#X0<\/td>LQFP-44<\/td>RL78, 32MHz, 128KB Flash<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7056","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=7056"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7056\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7056"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}