| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 12 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 324-BGA | 
                                                                            
                                            | Operating Temperature | 0°C~70°C | 
                                                                            
                                            | Packaging | Tray | 
                                                                            
                                            | Series | 72T | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
                                                                            
                                            | Voltage - Supply | 2.375V~2.625V | 
                                                                            
                                            | Base Part Number | 72T72105 | 
                                                                            
                                            | Function | Asynchronous, Synchronous | 
                                                                            
                                            | Current - Supply (Max) | 130mA | 
                                                                            
                                            | Memory Size | 4.5M 64K x 72 | 
                                                                            
                                            | Access Time | 8ns, 3.4ns | 
                                                                            
                                            | Data Rate | 100MHz, 225MHz | 
                                                                            
                                            | Bus Directional | Uni-Directional | 
                                                                            
                                            | FWFT Support | Yes | 
                                                                            
                                            | Expansion Type | Depth, Width | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                                                    
                            
                         
                                                72T72105L4-4BB Overview
This package is included in 324-BGA .In the shape of a Tray , it's packaged.Apps and data can be stored in the 4.5M 64K x 72 memory of the FIFO chip.It is advisable to regulate the temperature to 0°C~70°C to ensure reliable operation.There is Surface Mount  mounting type for this FIFO memory.Operating voltage is 2.375V~2.625V .It is a member of the 72T series .There is a FIFO's maximum operating supply current of 130mA .I believe it belongs to the 72T72105 family of numbers.
72T72105L4-4BB Features
4.5M 64K x 72 memory size
72T series
Best part number of 72T72105
72T72105L4-4BB Applications
There are a lot of Renesas Electronics America Inc. 72T72105L4-4BB  FIFOs Memory applications. 
- Down-Hole Energy Drilling
- Optical memories
- Desktop Computers
- Communications
- Firmware loaders
- Test site
- Buses 
- Smart Meter
- Address mapping
- Product traceability