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| PartNumber | SI32171-C-FM1 | SI32171-C-GM1 | SI32171-C-FM1R |
| Description | Telecom Interface ICs 1FXS PCM IF, -110V, DTMFD, PM, DCM | Telecom Interface ICs FXS with dc-dc controller (-110V max. battery), DTMF detection, pulse-metering | IC PROSLIC PCM/SPI -110V 42QFN |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | Telecom Interface ICs | Telecom Interface ICs | - |
| RoHS | Y | - | - |
| Packaging | Tray | Tray | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Telecom Interface ICs | Telecom Interface ICs | - |
| Factory Pack Quantity | 364 | 364 | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Product | - | SLIC - Subscriber Line Interface Circuits | - |
| Operating Supply Current | - | 45 mA | - |
| Mounting Style | - | SMD/SMT | - |
| Package / Case | - | QFN-42 | - |
| Type | - | Single Chip | - |
| Interface Type | - | SPI | - |
| Unit Weight | - | 0.001764 oz | - |