| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | ISL8490IB-T | 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers | 520K |
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| 2 | ISL8490IB-T | 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers | 587K |
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深圳市碧威特网络技术有限公司