| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | HT9020A | Call Progress Tone Decoder & ABR Controller | 488K |
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| 2 | HT9020A(18DIP) | Subscriber Line Metering/Monitoring Circuit | 545K |
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| 3 | HT9020A(18SOIC) | Subscriber Line Metering/Monitoring Circuit | 545K |
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