型号 / 厂家，封装，批号，备注，订购

SN74LS491A28L / Various,Datasheet,06/07+,Binary Up-Down 订购 PDF文档

SN74LS498L / Various,Datasheet,07+,8-Bit Shift Register 订购 PDF文档

SN74LS49J / ,,最新批号,现货库存 订购 PDF文档

SN74LS50J / TI,DIP,N/A,上海实货库存!欢迎查询! 订购 PDF文档

SN74LS51DSMD / ,,最新批号,原装现货 订购 PDF文档

SN74LS51FK / Texas Instruments,Datasheet,07+,AND-OR-INVERT GATES 订购 PDF文档

SN74LS521J / TI,DIP,N/A,上海实货库存!欢迎查询! 订购 PDF文档

SN74LS533 / Monolithic Memories,Datasheet,07+,LSI Data Book 1986 订购 PDF文档

SN74LS534AN / ,,最新批号,原装现货 订购 PDF文档

SN74LS447 / Texas Instruments,Datasheet,06/07+,BCD to 7 Decoders / 订购 PDF文档