IC快速检索：
型号 / 厂家，封装，批号，备注，订购
DM74LS540 / National Semiconductor,Datasheet,07+,Octal Buffer/Line Dr 订购 PDF文档
DM74LS563M / National Semiconductor,Datasheet,07+,Octal D-Type Latch - 订购 PDF文档
DM74LS564PC / National Semiconductor,Datasheet,06/07+,Octal D-Type Flip-Fl 订购 PDF文档
DM74LS564WM / National Semiconductor,Datasheet,07+,Octal D-Type Flip-Fl 订购 PDF文档
DM74LS640-NAT-SMD / ,,最新批号,原装现货 订购 PDF文档
DM74LS652WM / FSC,SOP-24,06+,0755-83980010 订购 PDF文档
DM74LS670N? / ,,最新批号,原装现货 订购 PDF文档
DM74LS670W / National Semiconductor,Datasheet,06/07+,Register File (Stati 订购 PDF文档