| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MC145446 | Single-Chip 300-Baud Modem with DTMF Transceiver | 271K |
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| 2 | MC145446 | Single-Chip 300-Baud Modem with DTMF Transceiver | 271K |
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| 3 | MC145446A | Single-Chip 300-Baud Modem with DTMF Transceiver | 271K |
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| 4 | MC145446A | Single-Chip 300-Baud Modem with DTMF Transceiver | 271K |
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| 5 | MC145446A | SINGLE-CHIP 300-BAUD MODEM WITH DTMF TRANSCEIVER | 274K |
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| 6 | MC145446AFW | Single-Chip 300-Baud Modem with DTMF Transceiver | 271K |
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| 7 | MC145446AFW | SINGLE-CHIP 300-BAUD MODEM WITH DTMF TRANSCEIVER | 274K |
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