型号 / 厂家，封装，批号，备注，订购

74F505SPC / Various,Datasheet,07+,8-Bit General-Purpos 订购 PDF文档

74F50729 / Philips Semiconductors,Datasheet,07+,Synchronizing dual D 订购 PDF文档

74F51DC / National Semiconductor,Datasheet,07+,2-2-3-3-Input AND-OR 订购 PDF文档

74F521D? / ,,最新批号,原装现货 订购 PDF文档

74F521LL / NSC,原厂原装,08+07+,7到10天国际现货 订购 PDF文档

74F521PC_NL / FSC,,07+,全新原装热卖 订购 PDF文档

74F521QC / Various,Datasheet,07+,8-Bit Identity Compa 订购 PDF文档

74F521SCX_NL / Fairchild Semiconductor,Datasheet,07+,8-Bit Identity Compa 订购 PDF文档

74F521SJX_NL / FSC,,07+,全新原装热卖 订购 PDF文档

74F524L1C / Various,Datasheet,07+,8-Bit Magnitude Comp 订购 PDF文档