The ATmega328P-PU is an 8-bit AVR microcontroller and the same chip used in popular Arduino Uno boards. With its 28-pin dual in-line package (DIP-28), it’s perfect for DIY electronics, embedded systems, and prototyping projects. The chip features high performance, low power consumption, and built-in peripherals for handling digital and analog tasks with ease.

Whether you’re building your own Arduino board, replacing a damaged chip, or designing a custom circuit, the ATmega328 offers the ideal balance of processing power, memory, and flexibility.

Specifications:

• Microcontroller: ATmega328P-PU
• Architecture: 8-bit AVR RISC
• Operating Voltage: 1.8V – 5.5V
• CPU Speed: Up to 20 MHz
• Flash Memory: 32 KB (with 0.5 KB used by bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB
• I/O Pins: 23 programmable I/O lines
• Analog Input Pins: 6 (10-bit ADC)
• Timers: 3 (two 8-bit, one 16-bit)
• PWM Channels: 6
• Communication Interfaces: UART, SPI, I2C (TWI)
• Operating Temperature: -40°C to +85°C (industrial range)
• Package Type: DIP-28 (through-hole)

Key Features:

• Same MCU used on the Arduino Uno and Nano
• Pre-bootloader option available (can be programmed directly via USB-to-serial adapter)
• Supports In-System Programming (ISP)
• Compatible with Arduino IDE and AVR Studio
• Excellent for education, prototyping, and embedded control systems
• Easy to use on breadboards and DIY PCBs

Applications:

• Arduino-based custom projects
• Robotics and automation
• Sensor data acquisition
• Embedded control systems
• DIY electronics and STEM education

Why Choose This Chip:

• Widely supported by the Arduino community
• Simple to program and integrate
• Reliable and energy-efficient design
• Ideal for beginners and advanced makers alike