型号 / 厂家，封装，批号，备注，订购

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

54LS253W / Raytheon Electronics,Datasheet,07+,4-Line Digital Multi 订购 PDF文档

54LS255W / Raytheon Electronics,Datasheet,07+,4-Line Digital Demul 订购 PDF文档

54LS256FM / Various,Datasheet,07+,Dual 4-Bit D-Type La 订购 PDF文档

54LS256FMQB / National Semiconductor,Datasheet,07+,Dual 4-Bit Addressab 订购 PDF文档

54LS257ALMQB / National Semiconductor,Datasheet,07+,TRI-STATE Quad 2-Dat 订购 PDF文档

54LS257FM / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

54LS257W / Raytheon Electronics,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

54LS258A/BEA / Philips Semiconductors,Datasheet,07+,2-Line Digital Multi 订购 PDF文档