| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | M74HC623B1R | OCTAL BUS TRANSCEIVER HC620 3 STATE INVERTING HC623 3 STATE NON INVERTING | 265K |
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| 2 | M74HC623B1R | OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS (NON INVERTING) | 324K |
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