| Parameters | 
                                
                                                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            42-WFQFN Exposed Pad | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Published | 
                                            2013 | 
                                        
                                                                            
                                            | Part Status | 
                                            Obsolete | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            2 (1 Year) | 
                                        
                                                                            
                                            | Type | 
                                            TxRx + MCU | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            1.8V~3.6V | 
                                        
                                                                            
                                            | Frequency | 
                                            240MHz~960MHz | 
                                        
                                                                            
                                            | Memory Size | 
                                            64kB Flash 4.35kB RAM | 
                                        
                                                                            
                                            | Protocol | 
                                            EZRadioPro | 
                                        
                                                                            
                                            | Power - Output | 
                                            20dBm | 
                                        
                                                                            
                                            | RF Family/Standard | 
                                            General ISM < 1GHz | 
                                        
                                                                            
                                            | Data Rate (Max) | 
                                            256kbps | 
                                        
                                                                            
                                            | Serial Interfaces | 
                                            I2C, SPI, UART | 
                                        
                                                                            
                                            | Current - Receiving | 
                                            18.5mA | 
                                        
                                                                            
                                            | Current - Transmitting | 
                                            85mA | 
                                        
                                                                            
                                            | Modulation | 
                                            FSK, GFSK, OOK | 
                                        
                                                                            
                                            | Sensitivity (dBm) | 
                                            -121 dBm | 
                                        
                                                                            
                                            | GPIO | 
                                            22 | 
                                        
                                                                            
                                            | RoHS Status | 
                                            RoHS Compliant | 
                                        
                                                                                                    
                            
                         
                                                SI1000-ESA2-GMR Overview
In order to save board space, RF transceiver IC uses the 42-WFQFN Exposed Pad package. As a RF transceiver's mounting method, Surface Mount is used.In this case, the TxRx + MCU emerges as highly efficient and reliable.High reliability is achieved using advanced transceiver RF' packaging Tape & Reel (TR).RF transceiver operates on the basis of the frequency of 240MHz~960MHz.
SI1000-ESA2-GMR Features
42-WFQFN Exposed Pad package
Surface Mount for mounting
TxRx + MCU 
 Tape & Reel (TR) is used
SI1000-ESA2-GMR Applications
There are a lot of Silicon Labs SI1000-ESA2-GMR RF Transceiver ICs applications. 
-  
 - Wireless Price Tags
 - Receive
 - Power management
 - Remote Control
 - HVAC
 - Medical
 - POS Terminals
 - Industrial and Data Logger
 - Patient Asset Tracking