| Manufacturer | Silicon Labs | Silicon Labs | 
                        
                            | Category | RF Transceiver ICs | RF Transceiver ICs | 
                        
                            |  |   |   | 
                                                
                            | Product Status | Discontinued at Digi-Key | Discontinued at Digi-Key | 
                                                
                            | Type | TxRx + MCU | TxRx + MCU | 
                                                
                            | RF Family/Standard | Bluetooth | Bluetooth | 
                                                
                            | Protocol | Bluetooth v5.0, Thread, Zigbee® | Bluetooth v5.0, Thread, Zigbee® | 
                                                
                            | Modulation | 2GFSK, 4GFSK, ASK, BPSK, DBPSK, DSSS, GMSK, OOK, OQPSK | 2GFSK, 4GFSK, ASK, BPSK, DBPSK, DSSS, GMSK, OOK, OQPSK | 
                                                
                            | Frequency | 2.4GHz | 2.4GHz | 
                                                
                            | Data Rate (Max) | 2Mbps | 2Mbps | 
                                                
                            | Power - Output | 19dBm | 19dBm | 
                                                
                            | Sensitivity | -103.3dBm | -103.3dBm | 
                                                
                            | Memory Size | 512kB Flash, 64kB RAM | 512kB Flash, 64kB RAM | 
                                                
                            | Serial Interfaces | I²C, I²S, IrDA, SPI, UART, USART | I²C, I²S, IrDA, SPI, UART, USART | 
                                                
                            | GPIO | 31 | 31 | 
                                                
                            | Voltage - Supply | 1.8V ~ 3.8V | 1.8V ~ 3.8V | 
                                                
                            | Current - Receiving | 9.5mA ~ 10.2mA | 9.5mA ~ 10.2mA | 
                                                
                            | Current - Transmitting | 8.5mA | 8.5mA | 
                                                
                            | Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
                                                
                            | Mounting Type | Surface Mount | Surface Mount | 
                                                
                            | Package / Case | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 
                                                
                            | Supplier Device Package | 32-QFN (5x5) | 32-QFN (5x5) |