| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | 74HCT299D | 8-bit universal shift register; 3-state | 87K |
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| 2 | 74HCT299D | 8-bit universal shift register; 3-state | 155K |
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| 3 | 74HCT299DB | 8-bit universal shift register; 3-state | 87K |
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| 4 | 74HCT299DB | 8-bit universal shift register; 3-state | 155K |
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