| Parameters | 
                                
                                                                                                            
                                            | Package / Case | 
                                            34-XFBGA, WLCSP | 
                                        
                                                                            
                                            | Surface Mount | 
                                            YES | 
                                        
                                                                            
                                            | Number of Pins | 
                                            34 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Series | 
                                            BlueNRG | 
                                        
                                                                            
                                            | Part Status | 
                                            Obsolete | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1 (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            34 | 
                                        
                                                                            
                                            | ECCN Code | 
                                            5A992.C | 
                                        
                                                                            
                                            | Type | 
                                            TxRx + MCU | 
                                        
                                                                            
                                            | HTS Code | 
                                            8542.39.00.01 | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            2V~3.6V | 
                                        
                                                                            
                                            | Terminal Position | 
                                            BOTTOM | 
                                        
                                                                            
                                            | Terminal Form | 
                                            BALL | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            3V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            0.4mm | 
                                        
                                                                            
                                            | Frequency | 
                                            2.4GHz | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | Operating Supply Voltage | 
                                            3.6V | 
                                        
                                                                            
                                            | Memory Size | 
                                            64kB Flash 12kB RAM | 
                                        
                                                                            
                                            | RAM Size | 
                                            12kB | 
                                        
                                                                            
                                            | Memory Type | 
                                            FLASH | 
                                        
                                                                            
                                            | Data Bus Width | 
                                            32b | 
                                        
                                                                            
                                            | Protocol | 
                                            Bluetooth v4.0 | 
                                        
                                                                            
                                            | Core Architecture | 
                                            ARM | 
                                        
                                                                            
                                            | Power - Output | 
                                            8dBm | 
                                        
                                                                            
                                            | RF Family/Standard | 
                                            Bluetooth | 
                                        
                                                                            
                                            | Data Rate (Max) | 
                                            1Mbps | 
                                        
                                                                            
                                            | Serial Interfaces | 
                                            SPI | 
                                        
                                                                            
                                            | Current - Receiving | 
                                            7.3mA~14.5mA | 
                                        
                                                                            
                                            | Current - Transmitting | 
                                            5.8mA~28.8mA | 
                                        
                                                                            
                                            | Modulation | 
                                            GFSK | 
                                        
                                                                            
                                            | Sensitivity (dBm) | 
                                            -88 dBm | 
                                        
                                                                            
                                            | Height Seated (Max) | 
                                            0.5mm | 
                                        
                                                                            
                                            | Length | 
                                            2.66mm | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Lead Free | 
                                        
                                                                                                    
                            
                         
                                                BLUENRGCSP Overview
Save RF transceiver IC's board space with 34-XFBGA, WLCSP package. With transceiver RF's  high efficiency, it appears as a TxRx + MCU.High reliability is provided by the advanced transceiver RF' packaging Tape & Reel (TR).On this transceiver RF circuit board, there are 34 pins.As you can see, this RF transceiver comes from the well-known BlueNRG series of products.In this RF transceiver, the frequency is 2.4GHz.
BLUENRGCSP Features
34-XFBGA, WLCSP package
TxRx + MCU 
 Tape & Reel (TR) is used
34 pins
BlueNRG series
BLUENRGCSP Applications
There are a lot of STMicroelectronics BLUENRGCSP RF Transceiver ICs applications. 
- Thermostats
 - Internet Radio
 - HVAC
 -  
 - Low Noise Amplifier (LNA)
 - Receive
 - Utility and Smart Energy
 - Low-power IoT applications
 - Transmit
 - Remote Control