Please send RFQ , we will respond immediately.
| Part Number | SI4432-B1-FMR | SI4430-B1-FMR | SI4431-B1-FMR | SI4432-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 | 900MHz ~ 960MHz | 240MHz ~ 930MHz | 240MHz ~ 930MHz | 
| Data Rate (Max) | 256Kbps | 256Kbps | 256Kbps | 256Kbps | 
| Power - Output | 20dBm (Max) | 13dBm (Max) | 13dBm (Max) | 20dBm (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 | 17mA ~ 30mA | 17mA ~ 30mA | 85mA | 
| 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) |