| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | CD74HCT244ME4 | High-Speed CMOS Logic Octal Buffer/Line Drivers, Three-State | 456K |
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| 2 | CD74HCT244ME4 | High-Speed CMOS Logic Octal Buffer/Line Drivers, Three-State | 486K |
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