DM74LS273WM DM74LS273WM-01 DM74LS273WMX DM74LS274N DM74LS275BJ DM74LS275BN DM74LS279 DM74LS279J DM74LS279M DM74LS279M-01 DM74LS279MX DM74LS279MX_F40 DM74LS279N DM74LS279N-FAIRCHILD DM74LS279NFSC DM74LS279NFSCPDIP16 DM74LS279SC DM74LS27J DM74LS27M DM74LS27M-03 DM74LS27MX DM74LS27MX-01 DM74LS27N DM74LS27N-01 DM74LS28 DM74LS283 DM74LS283AN DM74LS283J DM74LS283M DM74LS283M-01 DM74LS283MSMD DM74LS283MX DM74LS283N DM74LS283N-ND DM74LS287N DM74LS288AN DM74LS28M DM74LS28N DM74LS29 DM74LS290N DM74LS293M DM74LS293MX DM74LS293N DM74LS295AM DM74LS295AN DM74LS298 DM74LS298N DM74LS298N-FAIRCHILD DM74LS299 DM74LS299N DM74LS299N-01 DM74LS299V DM74LS299WM DM74LS299WMX DM74LS29N DM74LS2IN DM74LS3 DM74LS30 DM74LS30AM DM74LS30AN DM74LS30J DM74LS30M DM74LS30MD DM74LS30MX DM74LS30N DM74LS30N-FAIRCHILD DM74LS30N-NAT DM74LS30PC DM74LS32 DM74LS32006M DM74LS322N DM74LS322WM DM74LS323N DM74LS323WM DM74LS3245WMX DM74LS32J DM74LS32J/883B DM74LS32M DM74LS32M-01 DM74LS32M-3.9 DM74LS32MX DM74LS32MX-03 DM74LS32MX-18 DM74LS32MXFSC DM74LS32MX_0134 DM74LS32MX_32 DM74LS32N DM74LS32N(HSMRKD) DM74LS32N-FAIRCHILD DM74LS32NA DM74LS32NPC DM74LS32SJ