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| Part Number | SI4432-B1-FM | SI4432-B1-FMR | SI4430-B1-FM | SI4431-B1-FM |
|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs |
| Type | TxRx Only | TxRx Only | TxRx Only | TxRx Only |
| RF Family/Standard | General ISM < 1GHz | General ISM < 1GHz | General ISM < 1GHz | General ISM < 1GHz |
| Protocol | - | - | - | - |
| Modulation | FSK, GFSK, OOK | FSK, GFSK, OOK | FSK, GFSK, OOK | FSK, GFSK, OOK |
| Frequency | 240MHz ~ 930MHz | 240MHz ~ 930MHz | 900MHz ~ 960MHz | 240MHz ~ 930MHz |
| Data Rate (Max) | 256Kbps | 256Kbps | 256Kbps | 256Kbps |
| Power - Output | 20dBm (Max) | 20dBm (Max) | 13dBm (Max) | 13dBm (Max) |
| Sensitivity | -121dBm | -121dBm | -121dBm | -121dBm |
| Memory Size | - | - | - | - |
| Serial Interfaces | SPI | SPI | SPI | SPI |
| GPIO | 3 | 3 | 3 | 3 |
| Voltage - Supply | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V |
| Current - Receiving | 18.5mA | 18.5mA | 18.5mA | 18.5mA |
| Current - Transmitting | 85mA | 85mA | 17mA ~ 30mA | 17mA ~ 30mA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (4x4) | 20-QFN (4x4) | 20-QFN (4x4) | 20-QFN (4x4) |
