| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74LV240D | Octal buffer/line driver; inverting 3-State | 118K |
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| 2 | 74LV240DB | Octal buffer/line driver; inverting 3-State | 118K |
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| 3 | 74LV240DB-T | Dual 4-Bit Inverting Buffer/Driver | 233K |
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| 4 | 74LV240D-T | Dual 4-Bit Inverting Buffer/Driver | 233K |
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