| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | 54LS21FM | DUAL 4-INPUT POSITIVE AND GATE | 52K |
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| 2 | 54LS21FM | DUAL 4-INPUT POSITIVE AND GATE | 56K |
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| 3 | 54LS21FMQB | Dual 4-input AND Gate | 60K |
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深圳市碧威特网络技术有限公司