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型号 / 厂家，封装，批号，备注，订购
SN74ALS642A1DW / TEXASINSTRUMENTS,,,010-62106431 订购 PDF文档
SN74ALS642A-1DW / ,SOIC,07+,010-62104891 订购 PDF文档
SN74ALS642A-1DWR / ,SOIC,07+,010-62104891 订购 PDF文档
SN74ALS642A-1NE4 / ,PDIP,07+,010-62104891 订购 PDF文档
SN74ALS642A-1NSE4 / ,SOP,07+,010-62104891 订购 PDF文档
SN74ALS642A-1NSR / ,SOP,07+,010-62104891 订购 PDF文档
SN74ALS642ADW / TI,SOP-20,01+,★新佳电子批发与邮购★ 订购 PDF文档
SN74ALS643A-1N / ,,02+,原装现货 订购 PDF文档