| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74HCT243 | Quad bus transceiver; 3-state | 50K |
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| 2 | 74HCT243D | 4-Bit Bus Transceiver | 91K |
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| 3 | 74HCT243D-T | 4-Bit Bus Transceiver | 91K |
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| 4 | 74HCT243N | 4-Bit Bus Transceiver | 91K |
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