型号 / 厂家，封装，批号，备注，订购

DM74LS502WM / National Semiconductor,Datasheet,07+,8-Bit Successive App 订购 PDF文档

DM74LS75CW / Fairchild Semiconductor,Datasheet,07+,Quad Latch 订购 PDF文档

DM74LS77W / National Semiconductor,Datasheet,06/07+,Quadruple D-Type Lat 订购 PDF文档

DM74LS83A / National Semiconductor,Datasheet,07+,4-Bit Binary Adders 订购 PDF文档

DM74LS51N? / ,,最新批号,原装现货 订购 PDF文档

DM74LS534M / National Semiconductor,Datasheet,07+,Octal D-Type Flip-Fl 订购 PDF文档

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