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  • Product Code: ATmega328
  • Availability: In Stock
  • Ex Tax: $60.00

ATmega328 with Arduino 16MHz Bootloader

The name says it all on this one. An ATmega328 in DIP package, pre-loaded with the Arduino (16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Arduino board.

If you have just fried your UNO then this chip will work as normal if installed into an Arduino UNO board. As an added bonus, it is loaded with a slightly modified version of the Arduino UNO bootloader which makes it suitable for programming via the FT232 based serial ports. It is therefore suitable for use on breadboards and your own embedded projects.

To get this chip working with Arduino IDE, you will need an external 16MHz crystal or resonator, a 5V supply, and a serial connection. You should select the Arduino UNO board within the Arduino IDE. If you are not comfortable doing this, we recommend purchasing the Arduino Uno board that has all of these built into the board.

Voltage Range

According to the datasheet, the safe working voltage at 16MHz is between 3.8V to 5.5V.
These chips are thus suitable for running from 3x 1.5V batteries. Having said that, we have had no problems running these chips down to the cutoff voltage of 2.7V at 16MHz.. This means they can be run from 2x 1.5V batteries and is useful when interfacing with 3.3V devices as no voltage level conversion is required.

We also offer an Atmega328 with an 8MHz bootloader which will run at voltages between 1.8V and 5.5V

Kit of Parts

A complete kit of essential parts is also available (see options above). This includes

  • ATMega328 complete with Arduino Bootloader already installed
  • 16MHz Crystal and capacitors
  • 5V Voltage Regulator and 47uF capacitor
  • PCB mount reset switch and 10K pullup resistor
  • 0.1uF capacitor for self-reset
  • LED and resistor

Atmel's ATMega328 8-Bit Processor in 28 pin DIP package. It's like the ATmega168, with double the flash space. 32K of program space. 23 I/O lines, 6 of which are channels for the 10-bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit. 1.8V to 5V operating voltage!

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