| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | DM74LS21 | Dual 4-Input AND Gates | 123K |
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| 2 | DM74LS21 | Dual 4-Input AND Gates | 123K |
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| 3 | DM74LS21J | Dual 4-input AND Gate | 60K |
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| 4 | DM74LS21J/A+ | Dual 4-input AND Gate | 60K |
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| 5 | DM74LS21M | Dual 4-input AND Gate | 129K |
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| 6 | DM74LS21N | Dual 4-input AND Gate | 129K |
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| 7 | DM74LS21N/A+ | Dual 4-input AND Gate | 60K |
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| 8 | DM74LS21N/B+ | Dual 4-input AND Gate | 60K |
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