型号 / 厂家，封装，批号，备注，订购

DM74LS245WM? / ,,最新批号,原装现货 订购 PDF文档

DM74LS247 / Fairchild Semiconductor,Datasheet,06/07+,BCD to 7-Segment Dec 订购 PDF文档

DM74LS247M / National Semiconductor,Datasheet,06/07+,V(cc): 4.75 to 5.25V 订购 PDF文档

DM74LS248M / National Semiconductor,Datasheet,06/07+,7-Segment Display Dr 订购 PDF文档

DM74LS249 / National Semiconductor,Datasheet,07+,BCD to 7-Segment Dec 订购 PDF文档

DM74LS249M / National Semiconductor,Datasheet,07+,7-Segment Display Dr 订购 PDF文档

DM74LS299M / National Semiconductor,Datasheet,06/07+,8-Bit Shift Register 订购 PDF文档

DM74LS322 / National Semiconductor,Datasheet,07+,8-Bit Serial/Paralle 订购 PDF文档

DM74LS322M / National Semiconductor,Datasheet,06/07+,8-Bit Shift Register 订购 PDF文档

DM74LS322N / National Semiconductor,Datasheet,07+,8-Bit Shift Register 订购 PDF文档