| Parameters | 
                                                                                                                        
                                                | Mfr | Alliance Memory, Inc. | 
                                                                                    
                                                | Series | - | 
                                                                                    
                                                | Package | Tray | 
                                                                                    
                                                | Product Status | Active | 
                                                                                    
                                                | Memory Type | Volatile | 
                                                                                    
                                                | Memory Format | DRAM | 
                                                                                    
                                                | Technology | SDRAM - DDR2 | 
                                                                                    
                                                | Memory Size | 2Gbit | 
                                                                                    
                                                | Memory Organization | 256M x 8 | 
                                                                                    
                                                | Memory Interface | Parallel | 
                                                                                    
                                                | Clock Frequency | 400 MHz | 
                                                                                    
                                                | Write Cycle Time - Word, Page | 15ns | 
                                                                                    
                                                | Access Time | 57.5 ns | 
                                                                                    
                                                | Voltage - Supply | 1.7V ~ 1.9V | 
                                                                                    
                                                | Operating Temperature | 0°C ~ 95°C (TC) | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 60-TFBGA | 
                                                                                    
                                                | Supplier Device Package | 60-FBGA (8x10) | 
                                                                                    
                                                | Base Product Number | AS4C256 | 
                                                                                    
                                                | RoHS Status | ROHS3 Compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.32.0036 | 
                                                                                    
                                                | Standard Package | 136 | 
                                                                                                                
                                
                             
                                                SDRAM - DDR2 Memory IC 2Gbit Parallel 400 MHz 57.5 ns 60-FBGA (8x10)