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| Part Number | SI4438-B1C-FM | SI4438-B1C-FMR |
|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs |
| Product Status | Not For New Designs | Not For New Designs |
| Type | TxRx Only | TxRx Only |
| RF Family/Standard | General ISM < 1GHz | General ISM < 1GHz |
| Protocol | - | - |
| Modulation | FSK, GFSK, GMSK, OOK | FSK, GFSK, GMSK, OOK |
| Frequency | 425MHz ~ 525MHz | 425MHz ~ 525MHz |
| Data Rate (Max) | 500kbps | 500kbps |
| Power - Output | 20dBm (Max) | 20dBm (Max) |
| Sensitivity | -124dBm | -124dBm |
| Memory Size | - | - |
| Serial Interfaces | SPI | SPI |
| GPIO | 4 | 4 |
| Voltage - Supply | 1.8V ~ 3.6V | 1.8V ~ 3.6V |
| Current - Receiving | 14mA | 14mA |
| Current - Transmitting | 75mA | 75mA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (4x4) | 20-QFN (4x4) |
