| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | DS89C21 | Differential CMOS Line Driver and Receiver Pair | 80K |
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| 2 | DS89C21TM | Differential CMOS Line Driver and Receiver Pair | 80K |
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| 3 | DS89C21TMX | Transceiver | 145K |
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