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ATmega328P-PU with Optiboot

ATmega328P-PU with Optiboot

MPN: 26001
CANADUINO®
AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 32KB (16K x 16) FLASH 28-PDIP
Active132 in stock

Overview

This is a pre-programmed ATmega328P 8-bit AVR microcontroller in a through-hole 28-PDIP package, specifically designed for the Arduino ecosystem. It comes flashed with the Optiboot bootloader, allowing it to function as a replacement or heart of an Arduino Uno or compatible breadboard project without requiring an external ISP programmer.

Why Choose This Part

The 28-pin PDIP package is ideal for prototyping and hobbyist use because it fits directly into breadboards and standard IC sockets. Since it includes the Optiboot bootloader, engineers can upload code immediately via a standard USB-to-Serial TTL adapter.

Applications

Breadboard Prototyping
Building standalone Arduino-compatible circuits on a breadboard using a minimum of external components.
Arduino Uno Repair
Replacing damaged or bricked microcontrollers on existing Arduino Uno R3 boards.
Low-Power Embedded Control
Developing 8-bit applications that require low power consumption and easy through-hole soldering.
Educational Electronics
Teaching microcontroller fundamentals and C++ programming within the popular Arduino IDE environment.

Getting Started

To use this chip, place it on a breadboard with a 16MHz crystal and two 22pF capacitors. Connect a USB-to-TTL serial adapter (like an FTDI board) to the RX, TX, and Reset pins to upload sketches directly from the Arduino IDE by selecting Arduino Uno as the target board.

Also Consider

ATmega328P-PU MCHPMicrochip Technology - The raw, unprogrammed version of the same IC for high-volume production or custom bootloader requirements.
Arduino Uno Rev3 Arduino - A complete development board featuring this IC along with integrated power regulation and USB connectivity.