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型号 / 厂家，封装，批号，备注，订购
DM74ALS157MTR / NATIONAL SEMICONDUCTOR,,08/09+,全新原装深圳库存 订购 PDF文档
DM74ALS157MX / NATIONAL SEMICONDUCTOR,,08/09+,全新原装深圳库存 订购 PDF文档
DM74ALS157N / NATIONAL SEMICONDUCTOR,,08/09+,全新原装深圳库存 订购 PDF文档
DM74ALS157SJ / NATIONAL SEMICONDUCTOR,,08/09+,全新原装深圳库存 订购 PDF文档
DM74ALS157SJ_Q / ,,最新批号,原装现货 订购 PDF文档
DM74ALS157SJX / NATIONAL SEMICONDUCTOR,,08/09+,全新原装深圳库存 订购 PDF文档
DM74ALS158N_Q / ,,最新批号,原装现货 订购 PDF文档
DM74ALS15AM / ,,08/09+,全新原装货 订购 PDF文档