型号 / 厂家，封装，批号，备注，订购

74LS42W / Raytheon Electronics,Datasheet,07+,BCD-to-One-of-Ten De 订购 PDF文档

74LS685N / ti,pack:20/tube/dip20,dc88,全新原装现货 订购 PDF文档

74LS73A / Fairchild Semiconductor,Datasheet,07+,Dual Negative-Edge-T 订购 PDF文档

74LS73J / Raytheon Electronics,Datasheet,07+,Dual J-K Flip-Flop 订购 PDF文档

74LS73PC / Various,Datasheet,07+,Dual J-K Flip-Flop 订购 PDF文档

74LS447FC / Various,Datasheet,07+,7-Segment Display Dr 订购 PDF文档

74LS44W / Raytheon Electronics,Datasheet,07+,Excess-3-Gray-to-Dec 订购 PDF文档

74LS73W / Raytheon Electronics,Datasheet,07+,Dual J-K Flip-Flop 订购 PDF文档

74LS451 / ,Datasheet,07+,Dual 8:1 Mux Sn54/74 订购 PDF文档

74LS47DC / Various,Datasheet,07+,7-Segment Display Dr 订购 PDF文档