# ATmega328P

> microcontroller

**Wikidata**: [Q26205901](https://www.wikidata.org/wiki/Q26205901)  
**Source**: https://4ort.xyz/entity/atmega328p

## Summary
The ATmega328P is an 8-bit microcontroller from the Atmel AVR family, widely recognized for its use in the Arduino Uno board. It integrates 32 KB flash memory, 2 KB SRAM, and 1 KB EEPROM on a single chip.

## Key Facts
- **Classification**: Product model subclass of Atmel AVR and microcontroller
- **Manufacturer**: Atmel
- **Memory Specifications**: 32 KB flash memory, 2 KB static random-access memory, 1 KB EEPROM
- **Product Variant**: ATmega328P-PU
- **Primary Use Case**: Core microcontroller for Arduino Uno boards
- **Technical Family**: Part of the Atmel AVR microcontroller family
- **Documentation**: Official datasheet available at atmel.com/devices/atmega328p.aspx

## FAQs
### Q: What is the ATmega328P?
A: The ATmega328P is an 8-bit AVR RISC-based microcontroller featuring 32 KB flash, 2 KB SRAM, and 1 KB EEPROM memory, commonly used in embedded systems and educational platforms like Arduino.

### Q: What distinguishes the ATmega328P from other microcontrollers?
A: Its combination of low power consumption, integrated memory components, and widespread adoption in Arduino ecosystems makes it uniquely accessible for prototyping and hobbyist projects.

### Q: How much memory does the ATmega328P contain?
A: It includes 32 KB flash memory for program storage, 2 KB SRAM for data processing, and 1 KB EEPROM for non-volatile data retention.

### Q: What is the ATmega328P-PU variant?
A: ATmega328P-PU is a specific package variant of the ATmega328P microcontroller, utilizing a through-hole DIP-28 form factor suitable for protoboards.

## Why It Matters
The ATmega328P revolutionized embedded systems education and hobbyist electronics by providing an affordable, feature-rich microcontroller with integrated memory. Its adoption as the heart of the Arduino Uno platform democratized access to microcontroller programming, enabling millions to learn electronics and create interactive projects. The chip's balance of processing power, memory capacity, and low power consumption continues to make it a cornerstone of IoT devices, robotics, and educational curricula worldwide.

## Notable For
- **Arduino Uno Integration**: Serves as the primary microcontroller in the iconic Arduino Uno board
- **Memory Architecture**: Combines 32 KB flash, 2 KB SRAM, and 1 KB EEPROM in a single package
- **Accessibility**: Through-hole DIP-28 package enables easy prototyping without specialized equipment
- **Low Power Operation**: Designed for energy-efficient embedded applications
- **Industry Standard**: Established as a reference model for AVR microcontroller education

## Body
### Overview
The ATmega328P is an 8-bit AVR RISC architecture microcontroller manufactured by Atmel. It belongs to the Atmel AVR family and functions as a product model with distinct memory subsystems.

### Memory Configuration
- **Flash Memory**: 32 KB capacity for program storage
- **SRAM**: 2 KB static random-access memory for data handling
- **EEPROM**: 1 KB electrically erasable programmable read-only memory for non-volatile data retention

### Physical Implementation
- **Package Options**: Available in ATmega328P-PU through-hole DIP-28 configuration
- **Integration**: Core component in Arduino Uno development boards
- **Manufacturer**: Produced by Atmel Corporation

### Technical Classification
- **Instance Of**: Product model
- **Subclass Of**: Atmel AVR and microcontroller
- **Family**: Part of the Atmel AVR microcontroller lineage
- **Documentation**: Official resources provided via atmel.com/devices/atmega328p.aspx

### Ecosystem Role
- **Educational Impact**: Foundation for Arduino-based learning platforms
- **Hobbyist Adoption**: Enables rapid prototyping of interactive electronics
- **Memory Balance**: Provides sufficient resources for complex embedded projects while maintaining cost-effectiveness