| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 64-LQFP | 
                                                                            
                                            | Supplier Device Package | 64-TQFP (14x14) | 
                                                                            
                                            | Operating Temperature | 0°C~70°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Series | 72V | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
                                                                            
                                            | Voltage - Supply | 3V~3.6V | 
                                                                            
                                            | Base Part Number | 72V831 | 
                                                                            
                                            | Function | Synchronous | 
                                                                            
                                            | Current - Supply (Max) | 40mA | 
                                                                            
                                            | Memory Size | 36K 2K x 9 x 2 | 
                                                                            
                                            | Access Time | 10ns | 
                                                                            
                                            | Data Rate | 66.7MHz | 
                                                                            
                                            | Bus Directional | Bi-Directional | 
                                                                            
                                            | Retransmit Capability | No | 
                                                                            
                                            | FWFT Support | No | 
                                                                            
                                            | Programmable Flags Support | Yes | 
                                                                            
                                            | Expansion Type | Depth, Width | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                                                    
                            
                         
                                                72V831L15PF8 Overview
The 64-LQFP package contains FIFO memory chip.There is a case Tape & Reel (TR) in which it is packaged.There is a 36K 2K x 9 x 2 MB memory on the FIFO chips, which can be used to store both applications and data.It is recommended that the temperature be kept at 0°C~70°C to ensure reliable operation.There is a mounting type of Surface Mount on the FIFO memory.It uses a supply voltage of 3V~3.6V  to operate.This memory logic is part of the 72V  series.As far as operating current is concerned, it has a maximum of 40mA .I believe it belongs to the 72V831 family of numbers.
72V831L15PF8 Features
36K 2K x 9 x 2 memory size
72V series
Best part number of 72V831
72V831L15PF8 Applications
There are a lot of Renesas Electronics America Inc. 72V831L15PF8  FIFOs Memory applications. 
- Video time base correction
- Event Recorder
- Extended product-change notification
- Signal processing
- High-speed disk
- Queues for communication systems
- Computer Systems
- GPS Offender Tracking
- Networking
- Industrial Systems