| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 128-LQFP | 
                                                                            
                                            | Supplier Device Package | 128-TQFP (14x20) | 
                                                                            
                                            | Operating Temperature | 0°C~70°C | 
                                                                            
                                            | Packaging | Tray | 
                                                                            
                                            | Series | 7200 | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
                                                                            
                                            | Voltage - Supply | 4.5V~5.5V | 
                                                                            
                                            | Base Part Number | 723644 | 
                                                                            
                                            | Function | Synchronous | 
                                                                            
                                            | Current - Supply (Max) | 400mA | 
                                                                            
                                            | Memory Size | 72k 1k x 36 x 2 | 
                                                                            
                                            | Access Time | 8ns | 
                                                                            
                                            | Data Rate | 83MHz | 
                                                                            
                                            | Bus Directional | Bi-Directional | 
                                                                            
                                            | Retransmit Capability | No | 
                                                                            
                                            | FWFT Support | Yes | 
                                                                            
                                            | Programmable Flags Support | Yes | 
                                                                            
                                            | Expansion Type | Width | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                                                    
                            
                         
                                                723644L12PF Overview
You can find FIFO memory chip in package 128-LQFP .This FIFO memory chip is packaged as a Tray .There is a 72k 1k x 36 x 2 MB memory on the FIFO chips, which can be used to store both applications and data.The temperature should be adjusted to 0°C~70°C in order to ensure reliable operation.Mounting type Surface Mount is assigned to the FIFO memory.For operation, it requires a supply voltage of 4.5V~5.5V .This memory logic is part of the 7200  series.This FIFO products can operate at a maximum operating supply current of 400mA .A member of the 723644 family, it has the following characteristics.
723644L12PF Features
72k 1k x 36 x 2 memory size
7200 series
Best part number of 723644
723644L12PF Applications
There are a lot of Renesas Electronics America Inc. 723644L12PF  FIFOs Memory applications. 
- A/D output buffers
- SPD for DDR3 Memory Modules
- Computers
- Network switching/routing
- Application that requires re-writable nonvolatile parameter memory
- Wireless
- Portable Information Devices
- IP Radio
- Data communications
- Fabrication Site