| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 | 
|---|
| 1 | MC74HC4020ADR2 | 14-Stage Binary Ripple Counter | 171K | 
		     
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| 2 | MC74HC4020ADR2 | 14−Stage Binary Ripple Counter High−Performance Silicon−Gate CMOS | 117K | 
		     
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| 3 | MC74HC4020ADR2G | 14−Stage Binary Ripple Counter High−Performance Silicon−Gate CMOS | 117K | 
		     
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