| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74ACQ657SPC | Quiet Series⑩ Octal Bidirectional Transceiver with 8-Bit Parity Generator/Checker and 3-STATE Outputs | 98K |
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| 2 | 74ACQ657SPCQR | Single 8-bit Bus Transceiver | 636K |
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