型号 / 厂家，封装，批号，备注，订购

SN74LS28FN / Texas Instruments,Datasheet,07+,NOR-Function Buffer 订购 PDF文档

SN74LS28N3 / ,Datasheet,06/07+,Quad 2-Input NOR Pow 订购 PDF文档

SN74LS290-D / On Semiconductor,Datasheet,06/07+,DECADE 4-BIT 订购 PDF文档

SN74LS283NA / ,,最新批号,原装现货 订购 PDF文档

SN74LS289J / Various,Datasheet,06/07+,General-Purpose Stat 订购 PDF文档

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