| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | M74HCTXXXC1R | HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER (INV) | 256K |
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| 2 | M74HCTXXXC1R | HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER (INV) | 256K |
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| 3 | M74HCTXXXC1R | OCTAL D-TYPE LATCH WITH 3 STATE OUTPUT HCT563 INVERTING - HCT573 NON INVERTING | 275K |
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