| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 | 
|---|
| 1 | PI74FCT157AT | Fast CMOS Quad 2-Input Multiplexer | 51K | 
		     
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| 2 | PI74FCT157ATQ | 2-Input Digital Multiplexer | 187K | 
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| 3 | PI74FCT157ATS | 2-Input Digital Multiplexer | 187K | 
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| 4 | PI74FCT157ATW | 2-Input Digital Multiplexer | 187K | 
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