| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MC74HC20 | Dual 4-Input NAND Gate | 140K |
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| 2 | MC74HC20 | Dual 4-Input NAND Gate | 135K |
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| 3 | MC74HC20A | Dual 4-Input NAND Gate | 135K |
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| 4 | MC74HC20AD | Dual 4-Input NAND Gate | 135K |
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| 5 | MC74HC20ADT | Dual 4-Input NAND Gate | 135K |
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| 6 | MC74HC20AN | Dual 4-Input NAND Gate | 135K |
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| 7 | MC74HC20D | Dual 4-Input NAND Gate | 140K |
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| 8 | MC74HC20N | Dual 4-Input NAND Gate | 140K |
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