ATmega328P‑AU 8‑Bit AVR Microcontroller IC TQFP‑32 Flash Memory Single‑Chip Microchip For Arduino Controller Electronic Project

ATmega328P‑AU Microcontroller Chip

📌 Product Overview

The ATmega328P‑AU is a high‑performance low‑power 8‑bit AVR RISC microcontroller with TQFP‑32 surface‑mount package. It features 32KB in‑system programmable Flash memory, 2KB SRAM and 1KB EEPROM, running at up to 20MHz clock frequency. This chip integrates multiple communication interfaces including I2C, SPI and USART, with 23 general‑purpose I/O ports and 8‑channel 10‑bit ADC. The wide operating voltage from 1.8V to 5.5V and stable working temperature of -40℃ ~ +85℃ make it widely used for Arduino‑compatible control boards, embedded DIY projects and industrial control prototypes.

✨ Core Features

1. AVR 8‑bit RISC architecture, maximum operating frequency up to 20MHz
2. 32KB self‑programmable Flash, 2KB SRAM, 1KB EEPROM storage
3. Multi‑interface support: I2C, SPI, USART serial communication
4. 23 GPIO pins, 8‑channel analog‑to‑digital converter input
5. Wide supply voltage range: 1.8V – 5.5V
6. TQFP‑32 SMD surface‑mount packaging, built‑in internal oscillator
7. Industrial grade operating temperature: -40℃ ~ +85℃

📋 Product Specifications

Item	Parameter
Part Number	ATmega328P‑AU
Core	8‑bit AVR RISC
Flash Memory	32KB
RAM	2KB
EEPROM	1KB
Clock Frequency	20MHz
Supply Voltage	1.8V – 5.5V
Package	TQFP‑32
I/O Quantity	23
ADC Channels	8
Communication Interface	I2C, SPI, USART
Working Temperature	-40℃ ~ +85℃

🛠 Application Scenarios

‑ Arduino compatible main control chip ‑ Embedded electronic development projects ‑ Smart home control equipment ‑ Sensor data acquisition modules ‑ Industrial prototype verification ‑ DIY robot and automation control