| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 68-LCC (J-Lead) | 
                                                                            
                                            | Operating Temperature | 0°C~70°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Series | 7200 | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
                                                                            
                                            | Voltage - Supply | 4.5V~5.5V | 
                                                                            
                                            | Base Part Number | 72235 | 
                                                                            
                                            | Function | Synchronous | 
                                                                            
                                            | Current - Supply (Max) | 60mA | 
                                                                            
                                            | Memory Size | 36K 2K x 18 | 
                                                                            
                                            | Access Time | 15ns | 
                                                                            
                                            | Data Rate | 40MHz | 
                                                                            
                                            | Bus Directional | Uni-Directional | 
                                                                            
                                            | Retransmit Capability | No | 
                                                                            
                                            | Programmable Flags Support | Yes | 
                                                                            
                                            | Expansion Type | Depth, Width | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                                                    
                            
                         
                                                72235LB25J8 Overview
FIFO memory chip is included in the 68-LCC (J-Lead) package.There's a Tape & Reel (TR) on the package.There is a memory of 36K 2K x 18 on the FIFO chip that can be used to store applications and data.Regulating the temperature to 0°C~70°C ensures reliable operation.Mounting type Surface Mount is assigned to the FIFO memory.It uses a supply voltage of 4.5V~5.5V  to operate.It is a component from the 7200  series.As far as operating current is concerned, it has a maximum of 60mA .A member of the 72235 family, it has the following characteristics.
72235LB25J8 Features
36K 2K x 18 memory size
7200 series
Best part number of 72235
72235LB25J8 Applications
There are a lot of Renesas Electronics America Inc. 72235LB25J8  FIFOs Memory applications. 
- High-speed graphics pixel buffer
- Telecommunication
- Analog-to-digital converters
- Rate buffers
- Code converters
- Seismic Data Collection at Extreme Temperatures
- Consumer Systems
- Test Equipment
- Multi-stage synchronizer
- Controlled baseline