DS87C520-ECL,IC MCU EPROM/ROM 33MHZ HS 44TQFP
DS87C520-ECL+,IC MCU EPROM/ROM 33MHZ HS 44TQFP
DS87C520-ENL,IC MCU EPROM/ROM 33MH IND 44TQFP
DS87C520-ENL+,IC MCU EPROM/ROM 33MH IND 44TQFP
DS87C520-MCL,IC MCU EPROM/ROM 33MHZ HS 40-DIP
DS87C520-MCL+,IC MCU EPROM/ROM 33MHZ HS 40-DIP
DS87C520-MNL,IC MCU EPROM/ROM 33MH IND 40-DIP
DS87C520-MNL+,IC MCU EPROM/ROM 33MH IND 40-DIP