Product Overview

ATMEGA328P-AU is a high-performance, low-power 8-bit AVR microcontroller from Atmel (now Microchip), featuring a TQFP-32 package (32-pin thin quad flat package, 7×7mm), part of the ATmega AVR series. It integrates 32KB in-system programmable Flash, 1KB EEPROM, and 2KB SRAM, operating at 2.7V to 5.5V with a maximum frequency of 20MHz. Suitable for industrial control, consumer electronics, smart home, and other embedded system applications.

Key Features

• High-Performance AVR Core：Based on an enhanced RISC architecture with 131 instructions, most executed in single clock cycles, achieving up to 20 MIPS throughput. Hardware multiplier supports efficient mathematical operations.
• Rich Memory Resources：32KB Flash (including 2KB boot loader), 1KB EEPROM (100,000 write/erase cycles), and 2KB SRAM. Supports ISP (In-System Programming) and ICP (In-Circuit Programming) for easy firmware updates and data storage.
• Diverse Peripherals：
  • Timers/Counters：2×8-bit and 1×16-bit timers with PWM outputs for motor control.
  • Communication Interfaces：1×SPI, 1×USART, and 1×TWI (IC compatible) for multi-device communication.
  • ADC：8-channel 10-bit ADC with 13μs conversion time, supporting single-ended and differential input modes.
• Low-Power Design：Supports multiple low-power modes (Idle, Power-down, Power-save), with standby current as low as 1μA, ideal for battery-powered devices.
• High Reliability：Operating temperature range -40°C to +85°C, with built-in Power-on Reset (POR), Brown-out Detection (BOD), and Watchdog Timer (WDT) for enhanced system stability.

Technical Specifications

Typical Applications

• In smart temperature control systems, ATMEGA328P-AU can temperature sensor data via ADC, control heating elements with PWM outputs, communicate with hosts via USART, and extend battery life with low-power modes, suitable for small devices.
• For industrial automation equipment, it connects sensors and actuators via SPI/IC, uses 16-bit timers for precise timing, and employs the watchdog timer for automatic reset under conditions, ensuring stable operation.

Why Choose ATMEGA328P-AU？

• Easy Development：Supports Arduino IDE with extensive open-source libraries and tutorials, lowering development barriers.
• Cost-Effective：Provides rich peripherals and memory at a low cost, ideal for small to medium projects.
• Low Power Advantage：Multiple low-power modes extend battery life for portable devices.
• High Stability：Built-in POR, BOD, and WDT ensure reliability in complex industrial environments.
• Flexible Expandability：Rich communication interfaces facilitate connection to various peripherals, supporting system upgrades.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.