型号 / 厂家，封装，批号，备注，订购

54LS190DM / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档

54LS190W / Raytheon Electronics,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档

54LS191/B2A / Philips Semiconductors,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54LS191FM / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54LS192/BEA / REI,原厂原装,08+07+,7到10天国际现货 订购 PDF文档

54LS192FMQB / National Semiconductor,Datasheet,07+,54LS192/DM74LS192 Up 订购 PDF文档

54LS192LMQB / National Semiconductor,Datasheet,07+,54LS192/DM74LS192 Up 订购 PDF文档

54LS192W / Raytheon Electronics,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档

54LS193FMQB / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54LS194AFM / Various,Datasheet,07+,4-Bit Shift Register 订购 PDF文档