Features: Condition: New 100% Good Quality An ATmega328 in DIP package pre-loaded with theOptiboot Bootloader. This will allow you to use code in your custom embedded project without having to use an actual board.The name says it all on this one. To get this chip working with IDE you will need an external 16MHz crystal or resonator a 5V supply and a serial connection. 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! Specifications: Quantity: 1 piece Number of Pins: 28 Architecture: 8-bit Op.Temperature:-40 ~ 85C Series: ATMega Package includes: 1 X 8-Bit Micro Controller Microcontroller ATmega328P-PU w/ Bootloader