型号 / 厂家，封装，批号，备注，订购

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SN74HC590AJ / Texas Instruments,Datasheet,06/07+,8-Bit Binary Up Coun 订购 PDF文档

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SN74HC593N / Texas Instruments,Datasheet,06/07+,8-Bit Binary Up Coun 订购 PDF文档

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SN74HC620DW / Texas Instruments,Datasheet,07+,Octal Bus-Line Trans 订购 PDF文档

SN74HC623 / Texas Instruments,Datasheet,06/07+,OCTAL BUS TRANSCEIVE 订购 PDF文档

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