| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74ACQ646SC | Quiet Series⑩ Octal Transceiver/Register with 3-STATE Outputs | 99K |
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| 2 | 74ACQ646SCQR | Single 8-bit Bus Transceiver | 614K |
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| 3 | 74ACQ646SCX | Single 8-bit Bus Transceiver | 99K |
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