| Parameters | 
                                                                                                            
                                            | Mount | Surface Mount | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 64-LQFP | 
                                                                            
                                            | Number of Pins | 64 | 
                                                                            
                                            | Operating Temperature | 0°C~70°C | 
                                                                            
                                            | Packaging | Tray | 
                                                                            
                                            | Published | 1997 | 
                                                                            
                                            | Series | CY7C | 
                                                                            
                                            | JESD-609 Code | e0 | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
                                                                            
                                            | Number of Terminations | 64 | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Terminal Finish | Tin/Lead (Sn/Pb) | 
                                                                            
                                            | Additional Feature | RETRANSMIT | 
                                                                            
                                            | HTS Code | 8542.32.00.71 | 
                                                                            
                                            | Subcategory | FIFOs | 
                                                                            
                                            | Technology | CMOS | 
                                                                            
                                            | Voltage - Supply | 4.5V~5.5V | 
                                                                            
                                            | Terminal Position | QUAD | 
                                                                            
                                            | Terminal Form | GULL WING | 
                                                                            
                                            | Peak Reflow Temperature (Cel) | 240 | 
                                                                            
                                            | Supply Voltage | 5V | 
                                                                            
                                            | Terminal Pitch | 0.8mm | 
                                                                            
                                            | Frequency | 66.7MHz | 
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 30 | 
                                                                            
                                            | Base Part Number | 7C4225 | 
                                                                            
                                            | Function | Synchronous | 
                                                                            
                                            | Operating Supply Voltage | 5V | 
                                                                            
                                            | Power Supplies | 5V | 
                                                                            
                                            | Memory Size | 18K 1K x 18 | 
                                                                            
                                            | Element Configuration | Dual | 
                                                                            
                                            | Nominal Supply Current | 45mA | 
                                                                            
                                            | Max Supply Current | 45mA | 
                                                                            
                                            | Access Time | 10ns | 
                                                                            
                                            | Data Bus Width | 18b | 
                                                                            
                                            | Direction | Unidirectional | 
                                                                            
                                            | Organization | 1KX18 | 
                                                                            
                                            | Output Characteristics | 3-STATE | 
                                                                            
                                            | Memory Width | 18 | 
                                                                            
                                            | Density | 18 kb | 
                                                                            
                                            | Standby Current-Max | 0.01A | 
                                                                            
                                            | Parallel/Serial | PARALLEL | 
                                                                            
                                            | Word Size | 18b | 
                                                                            
                                            | Memory IC Type | OTHER FIFO | 
                                                                            
                                            | Bus Directional | Uni-Directional | 
                                                                            
                                            | FWFT Support | No | 
                                                                            
                                            | Programmable Flags Support | Yes | 
                                                                            
                                            | Output Enable | YES | 
                                                                            
                                            | Expansion Type | Depth, Width | 
                                                                            
                                            | Cycle Time | 15 ns | 
                                                                            
                                            | Height Seated (Max) | 1.6mm | 
                                                                            
                                            | Length | 14mm | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                            
                                            | Lead Free | Contains Lead | 
                                                                                                    
                            
                         
                                                CY7C4225-15AC Overview
64-LQFP  is the package in which FIFO memory chip is contained.It's packaged in the shape of a Tray .There is a memory of 18K 1K x 18 on the FIFO chip that can be used to store applications and data.It is recommended that the temperature be kept at 0°C~70°C to ensure reliable operation.This FIFO memory has a mounting type of Surface Mount .Operation is based on a supply voltage of 4.5V~5.5V .It belongs to the CY7C series of memory logics.Surface Mount is memory IC's recommended mounting method.The 7C4225 family of objects contains it.If the supply voltage is set to 5V , high efficiency can be achieved.I found that it has 64 terminations in FIFO means.There are 64 pins on the operation pins.There is a maximum current requirement of 45mA for its operation.FIFO is recommended that the supply voltage be set to 5V for maximum efficiency.The gadget is self-contained and can be found in FIFOs .The IC of the part is of the type OTHER FIFO .It is capable of maintaining good accuracy with a frequency of 66.7MHz .Normaly, the component is powered by 5V  power supplies.Additionally, this FIFO memory is capable of generating RETRANSMIT  as well.
CY7C4225-15AC Features
18K 1K x 18 memory size
CY7C series
Best part number of 7C4225
FIFOs category
CY7C4225-15AC Applications
There are a lot of Cypress Semiconductor Corp CY7C4225-15AC  FIFOs Memory applications. 
- Signal processing
- Application that requires re-writable nonvolatile parameter memory
- PC peripheral
- SPD for DDR3 Memory Modules
- Portable Information Devices
- Wireless
- Video
- Emulators
- High-speed graphics pixel buffer
- Network bridges