Description
The ATmega328P-PU is a high-performance, low-power 8-bit AVR microcontroller widely used in embedded systems, IoT devices, robotics, and educational platforms. Known for its role as the core component of the Arduino Uno, this version comes in a PDIP-28 (Plastic Dual In-Line Package) form, ideal for breadboarding, socketing, or through-hole PCB soldering.
Featuring 32KB of Flash memory, 2KB SRAM, 1KB EEPROM, and a variety of built-in peripherals, it offers a robust platform for both hobbyists and professional developers.
Note: This version does not include the Arduino bootloader and requires an external programmer (such as USBasp, AVRISP, or Arduino as ISP) for programming.
Key Features
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Standard AVR Microcontroller: Compatible with Atmel Studio, Arduino (with bootloader), PlatformIO
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Versatile I/O: Supports ADC, PWM, UART, SPI, and I²C interfaces
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PDIP-28 Package: Breadboard and through-hole PCB friendly
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Flexible Clocking: Supports internal and external clock sources (up to 20MHz)
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Ideal for Custom Boards: Easily integrates into custom Arduino-compatible circuits
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Low Power Modes: Multiple sleep modes for energy-efficient applications
Technical Specifications
| Parameter | Value |
|---|---|
| Architecture | 8-bit AVR RISC |
| Flash Memory | 32KB (with 512B bootloader space) |
| SRAM | 2KB |
| EEPROM | 1KB |
| Operating Voltage | 1.8V – 5.5V |
| Clock Speed (Max) | 20 MHz (typically 16 MHz external) |
| I/O Pins | 23 (Digital/Analog mix) |
| Timers | 2 × 8-bit, 1 × 16-bit |
| ADC Channels | 6 × 10-bit resolution |
| Communication Interfaces | UART, SPI, I2C |
| Package Type | PDIP-28 |
| Operating Temperature | -40°C to +85°C |
Package Includes
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1 × ATmega328P-PU Microcontroller (PDIP-28)
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