| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            8 Weeks | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            125-VFBGA | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Series | 
                                            Flex Gecko | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3 (168 Hours) | 
                                        
                                                                            
                                            | Type | 
                                            TxRx + MCU | 
                                        
                                                                            
                                            | Reach Compliance Code | 
                                            compliant | 
                                        
                                                                            
                                            | Memory Size | 
                                            1MB Flash 128kB RAM | 
                                        
                                                                            
                                            | Power - Output | 
                                            20dBm | 
                                        
                                                                            
                                            | Sensitivity | 
                                            -121dBm | 
                                        
                                                                            
                                            | Serial Interfaces | 
                                            I2C, I2S, SPI, UART | 
                                        
                                                                            
                                            | GPIO | 
                                            65 | 
                                        
                                                                            
                                            | RoHS Status | 
                                            RoHS Compliant | 
                                        
                                                                                                    
                            
                         
                                                EFR32FG12P231F1024GL125-CR Overview
There is also a 125-VFBGA package that RF transceiver IC is used to save space on the board. The RF transceiver's mounting method adopted is Surface Mount.In this case, it emerges as a TxRx + MCU with transceiver RF's  a high efficiency.The transceiver RF' packaging Tape & Reel (TR) provides high reliability.RF transceivers from the well-known Flex Gecko series product line are featured in this RF transceiver.
EFR32FG12P231F1024GL125-CR Features
125-VFBGA package
Surface Mount for mounting
TxRx + MCU 
 Tape & Reel (TR) is used
Flex Gecko series
EFR32FG12P231F1024GL125-CR Applications
There are a lot of Silicon Labs EFR32FG12P231F1024GL125-CR RF Transceiver ICs applications. 
- Remote Device Management
 - Transmit
 - Consumer Electronics
 - Industrial and Data Logger
 - Chemical Sensors
 - Automotive
 - Wireless Price Tags
 - Utility and Smart Energy
 - M2M Communication
 - Thermostats