型号 / 厂家，封装，批号，备注，订购

54LS247FMQB / National Semiconductor,Datasheet,07+,BCD TO 7-SEGMENT DEC 订购 PDF文档

54LS248DMQB / Various,Datasheet,07+,7-Segment Display Dr 订购 PDF文档

54LS248FM / Various,Datasheet,07+,7-Segment Display Dr 订购 PDF文档

54LS249DM / Various,Datasheet,07+,7-Segment Display Dr 订购 PDF文档

54LS249FM / Various,Datasheet,07+,7-Segment Display Dr 订购 PDF文档

54LS249FMQB / National Semiconductor,Datasheet,07+,7-Segment Display Dr 订购 PDF文档

54LS251FM / Various,Datasheet,07+,8-Line Digital Multi 订购 PDF文档

54LS251W / Raytheon Electronics,Datasheet,07+,8-Line Digital Multi 订购 PDF文档

54LS253J/883 / NSC,原厂原装,08+07+,7到10天国际现货 订购 PDF文档

54LS253J883B / ,,最新批号,原装现货 订购 PDF文档