ATXMEGA128B3-MCU ATXMEGA128B3-MCUR ATXMEGA128B3-MH ATXMEGA128B3-MHR ATXMEGA128B3-MN ATXMEGA128B3-MNR ATXMEGA128B3-MUR ATXMEGA128C3-AN ATXMEGA128C3-ANR ATXMEGA128C3-AU