| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            8 Weeks | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            48-VFQFN Exposed Pad | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tray | 
                                        
                                                                            
                                            | Series | 
                                            Flex Gecko | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            2 (1 Year) | 
                                        
                                                                            
                                            | Type | 
                                            TxRx + MCU | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            1.8V~3.8V | 
                                        
                                                                            
                                            | Reach Compliance Code | 
                                            compliant | 
                                        
                                                                            
                                            | Frequency | 
                                            169MHz~915MHz 2.4GHz | 
                                        
                                                                            
                                            | Memory Size | 
                                            128kB Flash 16kB RAM | 
                                        
                                                                            
                                            | Protocol | 
                                            Flex Gecko | 
                                        
                                                                            
                                            | Power - Output | 
                                            20dBm | 
                                        
                                                                            
                                            | RF Family/Standard | 
                                            802.15.4 | 
                                        
                                                                            
                                            | Sensitivity | 
                                            -126.2dBm | 
                                        
                                                                            
                                            | Data Rate (Max) | 
                                            1Mbps | 
                                        
                                                                            
                                            | Serial Interfaces | 
                                            I2C, I2S, SPI, UART, USART | 
                                        
                                                                            
                                            | Current - Receiving | 
                                            8.4mA~10.2mA | 
                                        
                                                                            
                                            | Current - Transmitting | 
                                            8.5mA~35.3mA | 
                                        
                                                                            
                                            | Modulation | 
                                            2FSK, 4FSK, ASK, BPSK, DBPSK, DSSS, GFSK, GMSK, OOK, O-QPSK | 
                                        
                                                                            
                                            | GPIO | 
                                            28 | 
                                        
                                                                            
                                            | RoHS Status | 
                                            RoHS Compliant | 
                                        
                                                                                                    
                            
                         
                                                EFR32FG14P233F128GM48-B Overview
There is also a 48-VFQFN Exposed Pad package that RF transceiver IC is used to save space on the board. In this case, RF transceiver's mounting method is Surface Mount.It emergys as a TxRx + MCU  with transceiver RF's  high efficiency and reliable performance.A high level of reliability is provided by using an advanced transceiver RF' packaging Tray.It is one of the well-known Flex Gecko series RF transceiver line.As a result, RF transceiver operates on the basis of frequency 169MHz~915MHz 2.4GHz.
EFR32FG14P233F128GM48-B Features
48-VFQFN Exposed Pad package
Surface Mount for mounting
TxRx + MCU 
 Tray is used
Flex Gecko series
EFR32FG14P233F128GM48-B Applications
There are a lot of Silicon Labs EFR32FG14P233F128GM48-B RF Transceiver ICs applications. 
- Digital Remote
 - Fitness
 - Switch
 - Low Noise Amplifier (LNA)
 - Power management
 - Power Amplifier (PA)
 - POS Terminals
 - Retail
 - Industrial and Data Logger
 - Internet of Things (IoT)