| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | HD74LS194 | 4-bit Bidirectional Universal Shift Registers | 99K |
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| 2 | HD74LS194 | 4-bit Bidirectional Universal Shift Registers | 99K |
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| 3 | HD74LS194A | 4-bit Bidirectional Universal Shift Registers | 99K |
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| 4 | HD74LS194A | Ouadruple 2-input Positive NAND Gates | 7129K |
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| 5 | HD74LS194A | 4-bit Bidirectional Universal Shift Register | 196K |
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| 6 | HD74LS194AFPEL | 4-bit Bidirectional Universal Shift Register | 196K |
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| 7 | HD74LS194AP | 4-bit Bidirectional Universal Shift Register | 196K |
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