{"id":2937,"date":"2026-05-27T14:30:17","date_gmt":"2026-05-27T14:30:17","guid":{"rendered":"https:\/\/materialparts.com\/atmega328p-au\/"},"modified":"2026-05-27T14:30:17","modified_gmt":"2026-05-27T14:30:17","slug":"atmega328p-au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/atmega328p-au\/","title":{"rendered":"ATMEGA328P-AU"},"content":{"rendered":"

Productos<\/h2>\n

The ATMEGA328P-AU from Microchip Technology is a high-performance 8-bit picoPower AVR RISC microcontroller in a 32-pin TQFP package. It features 32KB ISP Flash, 2KB SRAM, 1KB EEPROM, 23 I\/O pins, 8-channel 10-bit ADC, 6 PWM channels, and operates from 1.8V to 5.5V at up to 20MHz. This is the MCU at the heart of the Arduino Uno.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
N\u00facleo<\/td>\nAVR (8-bit RISC)<\/td>\n<\/tr>\n
Max Frequency<\/td>\n20MHz (20 MIPS)<\/td>\n<\/tr>\n
Memoria de programa<\/td>\n32KB ISP Flash (read-while-write)<\/td>\n<\/tr>\n
Data SRAM<\/td>\n2KB<\/td>\n<\/tr>\n
Data EEPROM<\/td>\n1KB<\/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
PWM Channels<\/td>\n6<\/td>\n<\/tr>\n
Temporizadores<\/td>\n2 x 8-bit, 1 x 16-bit<\/td>\n<\/tr>\n
Serial Interfaces<\/td>\nUSART, SPI, I2C (TWI)<\/td>\n<\/tr>\n
Temporizador Watchdog<\/td>\nYes (separate oscillator)<\/td>\n<\/tr>\n
Analog Comparator<\/td>\n1<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n1.8V to 5.5V<\/td>\n<\/tr>\n
Paquete<\/td>\nTQFP-32 (7 x 7mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
Life Cycle<\/td>\nNRND (Not Recommended for New Designs)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 131 instructions, most single-clock-cycle execution<\/li>\n
  • 32 x 8-bit general purpose working registers<\/li>\n
  • 32KB ISP Flash with 10K write\/erase cycles<\/li>\n
  • 1KB EEPROM with 100K write\/erase cycles<\/li>\n
  • 2KB SRAM with direct ALU access<\/li>\n
  • picoPower technology for ultra-low power consumption<\/li>\n
  • Six software-selectable power-saving modes<\/li>\n
  • Programmable serial USART with frame error detection<\/li>\n
  • Master\/Slave SPI serial interface<\/li>\n
  • Byte-oriented 2-wire serial interface (I2C compatible)<\/li>\n
  • Capacitive touch sensing (16 channels)<\/li>\n
  • Temperature sensor<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Arduino Uno and compatible boards<\/li>\n
    • IoT sensor nodes and gateways<\/li>\n
    • Consumer electronics and remote controls<\/li>\n
    • Industrial automation and control<\/li>\n
    • Battery-powered portable instruments<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATMEGA328P-AU from Microchip Technology is a high-performance 8-bit picoPower AVR RISC microcontroller in a 32-pin TQFP package. It features 32KB ISP Flash, 2KB SRAM, 1KB EEPROM, 23 I\/O pins, 8-channel 10-bit ADC, 6 PWM channels, and operates from 1.8V to 5.5V at up to 20MHz. This is the MCU at the heart […]<\/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-2937","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-microchip"],"acf":{"brief_explanation":"8-bit AVR picoPower MCU, 32KB Flash, 2KB SRAM, 23 I\/O, 8ch 10-bit ADC, TQFP-32, Arduino Uno MCU","date_code":"","package_case":"TQFP-32 (7.0 x 7.0 x 1.05mm)","in_stock":4457,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ATmega328P","price":"$2.29 @ 1ku","product_introduction":"The ATMEGA328P-AU from Microchip Technology is the iconic 8-bit AVR microcontroller at the heart of the Arduino Uno, packaged in a 32-pin TQFP. Based on the AVR enhanced RISC architecture executing 131 instructions with most in a single clock cycle, it achieves up to 20 MIPS at 20MHz. It integrates 32KB ISP Flash with read-while-write capability, 2KB SRAM, and 1KB EEPROM. The picoPower technology enables ultra-low power consumption across six sleep modes, while 23 I\/O pins provide access to 8-channel 10-bit ADC, 6 PWM channels, USART, SPI, and I2C interfaces. The device operates from 1.8V to 5.5V. Note: This device is NRND; ATMEGA328PB-AU is recommended for new designs.","working_principle":"The ATMEGA328P uses the AVR enhanced RISC architecture with a 2-stage pipeline and Harvard bus structure, allowing most instructions to execute in a single clock cycle. The 32 general-purpose working registers are directly connected to the ALU, enabling two independent registers to be accessed in one instruction. The Flash memory supports In-System Programming (ISP) and read-while-write operation through a boot loader section. The picoPower technology minimizes power consumption through clock gating, sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby), and a brown-out detector that can be disabled in software. The 16-bit Timer\/Counter with input capture and output compare supports precise PWM generation for motor control and audio.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-3<\/td>PD3-PD1<\/td>I\/O<\/td>Port D \/ INT1 \/ OC2B \/ TXD<\/td><\/tr>
      4<\/td>PD0\/RXD<\/td>I\/O<\/td>Port D \/ INT0 \/ RXD<\/td><\/tr>
      5-6<\/td>PD4, VCC<\/td>I\/O\/Power<\/td>Port D \/ XCK \/ Supply<\/td><\/tr>
      7<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      8-9<\/td>PB6-PB7<\/td>I\/O<\/td>Port B \/ XTAL1-XTAL2 \/ TOSC1-2<\/td><\/tr>
      10-17<\/td>PB5-PB0<\/td>I\/O<\/td>Port B \/ SCK\/MISO\/MOSI\/SS \/ OC1A-1B\/OC0A-0B<\/td><\/tr>
      18-19<\/td>AVCC, AREF<\/td>Power\/Analog<\/td>Analog supply \/ ADC reference<\/td><\/tr>
      20-25<\/td>PC0-PC5<\/td>I\/O<\/td>Port C \/ ADC0-5 \/ SDA\/SCL<\/td><\/tr>
      26-28<\/td>PC6, PD7, PD6<\/td>I\/O<\/td>RESET \/ OC0A \/ OC0B<\/td><\/tr>
      29-32<\/td>PD5-PD2<\/td>I\/O<\/td>Port D \/ OC0B \/ OC0A \/ INT0<\/td><\/tr><\/table>","application_scenarios":"
      • Arduino Uno and compatible development boards<\/li>
      • IoT sensor nodes with ultra-low-power sleep modes<\/li>
      • Custom embedded control systems with Arduino ecosystem<\/li>
      • Battery-powered data loggers with 1.8V minimum supply<\/li>
      • Capacitive touch user interfaces for consumer devices<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>ATMEGA328PB-AU<\/td>TQFP-32<\/td>Recommended replacement: 2nd USART, 2nd SPI, 2nd I2C<\/td><\/tr>
        Microchip<\/td>ATMEGA328-AUR<\/td>TQFP-32<\/td>Same device, tape & reel packaging<\/td><\/tr>
        Microchip<\/td>ATMEGA328P-PU<\/td>PDIP-28<\/td>DIP version for through-hole prototyping<\/td><\/tr>
        ST<\/td>STM32F103C8T6<\/td>LQFP-48<\/td>32-bit Cortex-M3, 72MHz upgrade path<\/td><\/tr>
        Espressif<\/td>ESP32-WROOM-32<\/td>Module<\/td>Wi-Fi + BLE, dual-core 240MHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=2937"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2937\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=2937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=2937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=2937"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=2937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}