IC快速检索：
型号 / 厂家，封装，批号，备注，订购
DM74ALS640AWM_Q / ,,,原装现货 订购 PDF文档
DM74ALS640AWMX / FAIRCHILD,,,010-62106431 订购 PDF文档
DM74ALS640WM / NSC,,,特价 订购 PDF文档
DM74ALS644 / ,,02+,原装现货 订购 PDF文档
DM74ALS645AN_Q / ,,,原装现货 订购 PDF文档
DM74ALS645AN-NL / FS,,05+,全新原装，深圳/香港现货 订购 PDF文档
DM74ALS646N / NATIONAL SEMICONDUCTOR,,,原装现货 订购 PDF文档
DM74ALS646N7 / ,,,原装现货 订购 PDF文档