| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 18 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 256-BGA | 
                                                                            
                                            | Packaging | Tray | 
                                                                            
                                            | Published | 1998 | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
                                                                            
                                            | Voltage - Supply | 3.3V | 
                                                                            
                                            | Base Part Number | DS21Q354 | 
                                                                            
                                            | Function | Transceiver | 
                                                                            
                                            | Interface | E1 | 
                                                                            
                                            | Number of Circuits | 4 | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                DS21Q354C1+ Overview
In order to save space on the board, 256-BGA packages are used.Packing is done according to the Tray method.The mounting type is Surface Mount.A 4-circuit composes this  telecom IC .Telecom circuit is possible to increase efficiency by providing 3.3V with a higher voltage.DS21Q354 is the base part number, which can be used to find more related parts.
DS21Q354C1+ Features
Available in the 256-BGA package
DS21Q354C1+ Applications
There are a lot of Maxim Integrated DS21Q354C1+ Telecom applications. 
- Integrated Access Devices (IADs)
- ISDN NT1/TA
- E1 Multiplexer
- Cable Telephony
- ISDN Primary Rate Interface
- High-Density T1/E1/J1 interfaces for Multiplexers
- Voice over packet gateways
- Central office
- Fiber
- Channel Banks