型号 / 厂家，封装，批号，备注，订购

54LS490FM / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档

54LS490FMQB / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档

54LS49J / ,,最新批号,现货库存 订购 PDF文档

54LS50 / TI/NS,CDIP,05+,协顺发科技.现货库存.质量保证.价格优势. 订购 PDF文档

54LS502 / Fairchild Semiconductor,Datasheet,07+,Full Line Condensed 订购 PDF文档

54LS502DM / Various,Datasheet,07+,Successive Approxima 订购 PDF文档

54LS502DMQB / National Semiconductor,Datasheet,07+,Successive Approxima 订购 PDF文档

54LS503 / National Semiconductor,Datasheet,07+, 订购 PDF文档

54LS503FMQB / National Semiconductor,Datasheet,07+,Successive Approxima 订购 PDF文档

54LS504DM / Various,Datasheet,07+,Successive Approxima 订购 PDF文档