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
DS87C520-QCL,IC MCU EPROM/ROM 33MHZ HS 44PLCC
DS87C520-QCL/T&R,IC MCU 8BIT 16KB OTP 44PLCC