| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | N74F552D | Octal registered transceiver with parity and flags 3-State | 117K |
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| 2 | N74F552DB | Single 8-bit Bus Transceiver | 608K |
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| 3 | N74F552D-T | Single 8-bit Bus Transceiver | 608K |
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