型号 / 厂家，封装，批号，备注，订购

SN74LS28JDS / ,,最新批号,现货库存 订购 PDF文档

SN-74LS28N / ,,最新批号,原装现货 订购 PDF文档

SN74LS290FN / Texas Instruments,Datasheet,06/07+,BCD-Output Decade Up 订购 PDF文档

SN74LS292FN / Texas Instruments,Datasheet,06/07+,Programmable Frequen 订购 PDF文档

SN74LS290DR2 / On Semiconductor,Datasheet,06/07+,DECADE 4-BIT 订购 PDF文档

SN-74LS292N / ,,最新批号,原装现货 订购 PDF文档

SN74LS292N3 / ,Datasheet,06/07+,Programmable 32-Bit 订购 PDF文档

SN74LS293DR2 / On Semiconductor,Datasheet,06/07+,DECADE 4-BIT 订购 PDF文档

SN74LS297AN / ,,最新批号,现货库存 订购 PDF文档

SN74LS293FN / Texas Instruments,Datasheet,06/07+,4-Bit Binary Up Coun 订购 PDF文档