Description
The ATmega328P-PU is a powerful 8-bit AVR microcontroller and the heart of the popular Arduino Uno. This version comes preloaded with the Arduino bootloader, allowing you to easily program it using the Arduino IDE via an external USB-to-Serial adapter, making it perfect for standalone embedded projects and custom Arduino-compatible boards.
Packaged in a standard DIP-28 form factor, it’s ideal for breadboarding and through-hole PCB assembly. The microcontroller includes a robust feature set, including 32KB Flash memory, 10-bit ADC, and multiple communication interfaces, making it suitable for a wide range of DIY electronics, robotics, and IoT projects.
Key Features
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Preloaded with Arduino Bootloader: Ready to upload Arduino sketches via FTDI/USB-to-Serial
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Drop-in Replacement: Ideal for custom Arduino Uno-style projects
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DIP-28 Package: Breadboard and prototyping friendly
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Rich Peripheral Support: Timers, ADC, PWM, SPI, I2C, UART
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Low Power Design: Multiple sleep modes and power-saving features
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Stable and Reliable: Used in thousands of Arduino-based applications worldwide
Technical Specifications
| Parameter | Value |
|---|---|
| Architecture | 8-bit AVR RISC |
| Flash Memory | 32KB (0.5KB used by bootloader) |
| SRAM | 2KB |
| EEPROM | 1KB |
| Clock Speed | 16 MHz (external crystal supported) |
| Operating Voltage | 1.8V – 5.5V |
| I/O Pins | 23 (digital + analog) |
| ADC Channels | 6 × 10-bit ADC |
| Timers | Two 8-bit, One 16-bit |
| Communication Interfaces | UART, SPI, I2C |
| Package Type | DIP-28 |
| Operating Temperature Range | -40°C to +85°C |
Package Includes
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1 × ATmega328P-PU Microcontroller (Preloaded with Arduino Bootloader)
Recommended Accessories (Sold Separately):
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16 MHz Crystal Oscillator + 22pF Capacitors
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USB-to-Serial Adapter (FTDI/CP2102/CH340)
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10KΩ Pull-up Resistor for Reset Pin
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Breadboard or custom PCB
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