| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | HD74HC444 | Quad. Tridirectional Bus Transceiver(with noninverted/inverted 3-state outputs) | 86K |
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| 2 | HD74HC444 | Quad. Tridirectional Bus Transceiver(with noninverted 3-state outputs)/(with inverted 3-state outputs)/(with noninverted/inverted 3-state outputs) | 194K |
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| 3 | HD74HC444FP | Logic IC | 326K |
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| 4 | HD74HC444P | Logic IC | 326K |
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| 5 | HD74HC444RPEL | Quad. Tridirectional Bus Transceiver(with noninverted 3-state outputs)/(with inverted 3-state outputs)/(with noninverted/inverted 3-state outputs) | 194K |
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