型号 / 厂家，封装，批号，备注，订购

54F280M/B2AJC / NS,DIP,08+,原装现货主打品牌 订购 PDF文档

54F283L1M / Various,Datasheet,07+,4-Bit Parallel Full 订购 PDF文档

54F283LM / NSC,原厂原装,08+07+,7到10天国际现货 订购 PDF文档

54F289FM / Various,Datasheet,07+,General-Purpose Stat 订购 PDF文档

54F298DM / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

54F298L1M / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

54F298LM / National Semiconductor,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

54F298SDM / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

54F299/B2A / Various,Datasheet,07+,8-Bit Shift Register 订购 PDF文档

54F299DM / National Semiconductor,Datasheet,07+,Octal Universal Shif 订购 PDF文档