DataSheet ATmega328/P Atmel - Preview and Download
New Original Semiconductor IC Electronic Components IC Chips Electronics Microchip/Atmel Atmega328p Atmega328p-PU, Atmega328p-Pn 8-Bit Microcontrollers in Stock - China Atmega328p and Atmega328p-PU
Remove Atmega328P-PU for stand alone project - Microcontrollers - Arduino Forum