ATMEGA2560-16AU ATMEGA2560-16AU (TQFP 100) ATMEGA2560-16AuP ATMEGA2560-16AUR ATMEGA2560-16AUR/BKN ATMEGA2560-16CU ATMEGA2560-16CUR ATMEGA2560-16MU ATMEGA2560-16U-TH ATMEGA2560-16U-TW