| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | HD74HC4020 | 14-stage Binary Counter | 54K |
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| 2 | HD74HC4020 | 14-stage Binary Counter | 96K |
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| 3 | HD74HC4020FPEL | 14-stage Binary Counter | 96K |
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| 4 | HD74HC4020P | 14-stage Binary Counter | 96K |
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