型号 / 厂家，封装，批号，备注，订购

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DM74S188AJ/A+ / National Semiconductor,Datasheet,07+,Fuse-Programmable PR 订购 PDF文档

DM-74S175J / ,,最新批号,现货库存 订购 PDF文档

DM74S188AV / National Semiconductor,Datasheet,06/07+,(32 X 8) 256-BIT TTL 订购 PDF文档

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DM74S182 / National Semiconductor,Datasheet,06/07+,Look-Ahead Carry Gen 订购 PDF文档

DM74S187N / National Semiconductor,Datasheet,06/07+,General Purpose 订购 PDF文档