| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MC54HCT74AJ | Quad 2-Input NAND Gate with LSTTL-Compatible Inputs | 94K |
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| 2 | MC54HCT74AJ | Dual D Flip-Flop with Set and Reset with LSTTL Compatible Inputs | 98K |
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| 3 | MC54HCT74AJ | Dual D Flip-Flop with Set and Reset with LSTTL Compatible Inputs | 194K |
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