| Parameters | 
                                                                                                            
                                            | Mfr | Cypress Semiconductor Corp | 
                                                                            
                                            | Series | CY7C | 
                                                                            
                                            | Package | Bulk | 
                                                                            
                                            | Product Status | Active | 
                                                                            
                                            | Digi-Key Programmable | Not Verified | 
                                                                            
                                            | Memory Size | 512 x 9 | 
                                                                            
                                            | Function | Asynchronous | 
                                                                            
                                            | Data Rate | 28.5MHz | 
                                                                            
                                            | Access Time | 25ns | 
                                                                            
                                            | Voltage - Supply | 4.5 V ~ 5.5 V | 
                                                                            
                                            | Current - Supply (Max) | 80mA | 
                                                                            
                                            | Bus Directional | Uni-Directional | 
                                                                            
                                            | Expansion Type | Depth, Width | 
                                                                            
                                            | Programmable Flags Support | No | 
                                                                            
                                            | Retransmit Capability | Yes | 
                                                                            
                                            | FWFT Support | No | 
                                                                            
                                            | Operating Temperature | -40°C ~ 85°C | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 32-LCC (J-Lead) | 
                                                                            
                                            | Supplier Device Package | 32-PLCC (11.43x13.97) | 
                                                                            
                                            | Base Product Number | 7C421 | 
                                                                            
                                            | RoHS Status | RoHS non-compliant | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | REACH Status | REACH Affected | 
                                                                            
                                            | ECCN | EAR99 | 
                                                                            
                                            | HTSUS | 8542.32.0071 | 
                                                                            
                                            | Standard Package | 1 | 
                                                                                                    
                            
                         
                                                Asynchronous FIFO 512 x 9 Uni-Directional 28.5MHz 25ns 32-PLCC (11.43x13.97)