| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | DM74LS55 | 2-Wide, 4-Input AND-OR-INVERT Gate | 115K |
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| 2 | DM74LS55J | 4/4-input AND-NOR Gate | 136K |
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| 3 | DM74LS55J/A+ | 4/4-input AND-NOR Gate | 136K |
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| 4 | DM74LS55M | 2-Wide, 4-Input AND-OR-INVERT Gate | 115K |
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| 5 | DM74LS55M14A | 2-Wide, 4-Input AND-OR-INVERT Gate | 115K |
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| 6 | DM74LS55N | 2-Wide, 4-Input AND-OR-INVERT Gate | 115K |
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| 7 | DM74LS55N/A+ | 4/4-input AND-NOR Gate | 136K |
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| 8 | DM74LS55N/B+ | 4/4-input AND-NOR Gate | 136K |
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| 9 | DM74LS55N14A | 2-Wide, 4-Input AND-OR-INVERT Gate | 115K |
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| 10 | DM74LS55W | 4/4-input AND-NOR Gate | 136K |
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