74LS399B1 74ls399d 74LS399J 74LS399N 74LS3N 74LS4 74LS40 74LS40(SN74LS40N) D/C81 74LS40(SN74LS40N) D/C83 74LS4040 74LS4049D 74LS404CD 74LS404CN 74LS404D 74LS4051 74LS4051D 74LS4052 74LS4052D 74LS4053 74LS4053D 74LS4060D 74LS4066D 74LS4074 74LS4094 74LS4094D 74LS40A 74LS40D 74LS40DC 74LS40N 74LS40NA2 74LS40NS 74LS40NT 74LS40NUCY 74LS40P 74LS40PC 74LS41 74LS41A 74LS42 74LS421 74LS422 74LS422D 74LS422N 74LS423 74LS4231 74LS423D 74LS423DR 74LS423DSMD 74LS423EN 74LS423N 74LS424 74LS42B1 74LS42D 74LS42D-SMD (SN74LS42D) 74LS42D-SMD(SN74LS42D) D/C98 74LS42DC 74LS42DR 74LS42J 74LS42M 74LS42M(SMDJAPAN SIZE) D/C99 74LS42N 74LS42P 74LS42PC 74LS43 74LS43N 74LS44 74ls440dw 74LS440N 74ls441dw 74ls441n 74LS442 74LS442N 74LS443 74ls443dw 74LS443N 74LS444 74ls444dw 74LS444N 74LS445 74LS445N 74LS447 74LS447D 74LS447PC 74LS448 74ls448dw 74LS449 74LS449N 74LS44N 74LS45 74LS450 74LS450CJ 74LS450NS 74LS4514D