型号 / 厂家，封装，批号，备注，订购

SN54LS249W / Various,Datasheet,06/07+,7-Segment Display Dr 订购 PDF文档

SN54LS253FK / Texas Instruments,Datasheet,06/07+,DUAL 4-LINE TO 1-LIN 订购 PDF文档

SN54LS257BW / Texas Instruments,Datasheet,07+,QUADRUPLE 2-LINE TO 订购 PDF文档

SN54LS258B / Texas Instruments,Datasheet,06/07+,QUADRUPLE 2-LINE TO 订购 PDF文档

SN54LS258BFK / Texas Instruments,Datasheet,07+,QUADRUPLE 2-LINE TO 订购 PDF文档

SN54LS251FK / Texas Instruments,Datasheet,06/07+,DATA SELECTORS/MULTI 订购 PDF文档

SN54LS257AW / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

SN54LS257B / Texas Instruments,Datasheet,06/07+,QUADRUPLE 2-LINE TO 订购 PDF文档

SN54LS257W / Various,Datasheet,06/07+,2-Line Digital Multi 订购 PDF文档

SN54LS258BW / Texas Instruments,Datasheet,06/07+,QUADRUPLE 2-LINE TO 订购 PDF文档