| PartNumber | SI4464-B1B-FMR | SI4464-B1B-FM | SI4464-B1X-FM |
| Description | RF Transceiver +20 dBm sub-GHz transmitter | RF Transceiver +20 dBm sub-GHz transmitter | IC RF TXRX+MCU ISM<1GHZ 20VFQFN |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | RF Transceiver | RF Transceiver | - |
| RoHS | Y | Y | - |
| Type | Sub-GHz | Sub-GHz | - |
| Frequency Range | 119 MHz to 1050 MHz | 119 MHz to 960 MHz | - |
| Maximum Data Rate | 1 Mb/s | 1 Mb/s | - |
| Modulation Format | ASK, FSK, GFSK, GMSK, MSK, OOK | GFSK, 4-GFSK, GMSK, OOK | - |
| Supply Voltage Min | 1.8 V | 1.8 V | - |
| Supply Voltage Max | 3.6 V | 3.6 V | - |
| Output Power | 20 dBm | 20 dBm | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Interface Type | SPI | SPI | - |
| Package / Case | QFN-20 | QFN-20 | - |
| Packaging | Reel | Tray | - |
| Series | SI4464 | SI4464 | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Product Type | RF Transceiver | RF Transceiver | - |
| Factory Pack Quantity | 2500 | 490 | - |
| Subcategory | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits | - |
| Tradename | EZRadioPRO | EZRadioPRO | - |
| Unit Weight | 0.000582 oz | 0.000582 oz | - |
| Supply Current Receiving | - | 10.6 mA, 13.6 mA | - |
| Supply Current Transmitting | - | 85 mA | - |
| Sensitivity | - | - 126 dBm | - |