| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            8 Weeks | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            48-VFQFN Exposed Pad | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            0°C~70°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Series | 
                                            ProSLIC® | 
                                        
                                                                            
                                            | Pbfree Code | 
                                            yes | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3 (168 Hours) | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            3.3V | 
                                        
                                                                            
                                            | Interface | 
                                            3-Wire, PCM | 
                                        
                                                                            
                                            | Number of Circuits | 
                                            2 | 
                                        
                                                                            
                                            | Telecom IC Type | 
                                            DIGITAL SLIC | 
                                        
                                                                            
                                            | RoHS Status | 
                                            Non-RoHS Compliant | 
                                        
                                                                                                    
                            
                         
                                                SI32281-A-FM Overview
To save board space, the 48-VFQFN Exposed Pad package is used.Telecommunications equipment is packed according to Tube's method.Surface Mount is used as telecommunications equipment mounting type.Telecom circuit is made up of 2 circuits.When the voltage for 3.3V is provided, improved efficiency can be achieved.Reliable performance can be offered when the operating temperature is set at 0°C~70°C.Telecom ICs are of type DIGITAL SLIC.With the ProSLIC? series electronic parts, it can provide a lot of similar features.
SI32281-A-FM Features
Available in the 48-VFQFN Exposed Pad package
DIGITAL SLIC as telecom IC type
SI32281-A-FM Applications
There are a lot of Silicon Labs SI32281-A-FM Telecom applications. 
- Fractional T1/E1/J1
 - Microwave transmission systems
 - PCM channel bank
 - DECT (Digital European Cordless Telephone) Base
 - Digital Cross Connect Systems
 - SONET/SDH terminal 
 - ATM Switches
 - Digital Cross-Connect Systems
 - Dual battery supply voltage SLICs
 - Cable Modem