型号 / 厂家，封装，批号，备注，订购

SN74LS688SW / ,,最新批号,原装现货 订购 PDF文档

SN74LS68P  / ,,最新批号,现货库存 订购 PDF文档

SN74LS69 / Texas Instruments,Datasheet,07+,DUAL 4-BIT DECADE OR 订购 PDF文档

SN74LS690 / Texas Instruments,Datasheet,06/07+,SYNCHRONOUS S 订购 PDF文档

SN74LS691 / ,,08/09+,全新原装现货库存 订购 PDF文档

SN74LS691DW / ,,08/09+,全新原装现货库存 订购 PDF文档

SN74LS691DWR / ,,08/09+,全新原装现货库存 订购 PDF文档

SN74LS693 / ,,08/09+,全新原装现货库存 订购 PDF文档

SN74LS693DW / ,,08/09+,全新原装现货库存 订购 PDF文档

SN74LS696 / Texas Instruments,Datasheet,06/07+,SYNCHRONOUS UP/DOWN 订购 PDF文档