| Parameters | 
                                
                                                                                                            
                                            | Memory Type | 
                                            Non-Volatile | 
                                        
                                                                            
                                            | Memory Format | 
                                            FLASH | 
                                        
                                                                            
                                            | Technology | 
                                            FLASH - NOR | 
                                        
                                                                            
                                            | Memory Size | 
                                            4Mbit | 
                                        
                                                                            
                                            | Memory Organization | 
                                            512K x 8 | 
                                        
                                                                            
                                            | Memory Interface | 
                                            SPI | 
                                        
                                                                            
                                            | Clock Frequency | 
                                            80 MHz | 
                                        
                                                                            
                                            | Write Cycle Time - Word, Page | 
                                            3ms | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            1.65V ~ 1.95V | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C ~ 105°C (TA) | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            8-WDFN Exposed Pad | 
                                        
                                                                            
                                            | Supplier Device Package | 
                                            8-WSON (6x5) | 
                                        
                                                                            
                                            | Base Product Number | 
                                            IS25WD040 | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3  (168 Hours) | 
                                        
                                                                            
                                            | REACH Status | 
                                            REACH Unaffected | 
                                        
                                                                            
                                            | ECCN | 
                                            EAR99 | 
                                        
                                                                            
                                            | HTSUS | 
                                            8542.32.0071 | 
                                        
                                                                            
                                            | Standard Package | 
                                            100 | 
                                        
                                                                            
                                            | Mfr | 
                                            ISSI, Integrated Silicon Solution Inc | 
                                        
                                                                            
                                            | Series | 
                                            - | 
                                        
                                                                            
                                            | Package | 
                                            Bulk | 
                                        
                                                                            
                                            | Product Status | 
                                            Obsolete | 
                                        
                                                                                                    
                            
                         
                                                FLASH - NOR Memory IC 4Mbit SPI 80 MHz 8-WSON (6x5)