| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | PI74FCT574DTQ | Fast CMOS Octal D Registers (3-State) | 167K |
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| 2 | PI74FCT574DTQ | Fast CMOS Octal D Registers (3-State) | 167K |
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| 3 | PI74FCT574DTQE | Fast CMOS Octal D Registers (3-State) | 167K |
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| 4 | PI74FCT574DTQE | Fast CMOS Octal D Registers (3-State) | 167K |
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