| Parameters | 
                                    
                                                                                                            
                                        | Mfr | 
                                        Renesas | 
                                    
                                                                        
                                        | Series | 
                                        - | 
                                    
                                                                        
                                        | Package | 
                                        Bulk | 
                                    
                                                                        
                                        | Product Status | 
                                        Obsolete | 
                                    
                                                                        
                                        | Type | 
                                        Fanout Buffer (Distribution) | 
                                    
                                                                        
                                        | Number of Circuits | 
                                        1 | 
                                    
                                                                        
                                        | Ratio - Input:Output | 
                                        1:21 | 
                                    
                                                                        
                                        | Differential - Input:Output | 
                                        Yes/Yes | 
                                    
                                                                        
                                        | Input | 
                                        HCSL, LVDS, LVHSTL, LVPECL | 
                                    
                                                                        
                                        | Output | 
                                        HCSL | 
                                    
                                                                        
                                        | Frequency - Max | 
                                        250 MHz | 
                                    
                                                                        
                                        | Voltage - Supply | 
                                        3.135V ~ 3.465V | 
                                    
                                                                        
                                        | Operating Temperature | 
                                        0°C ~ 70°C (TA) | 
                                    
                                                                        
                                        | Mounting Type | 
                                        Surface Mount | 
                                    
                                                                        
                                        | Package / Case | 
                                        64-TQFP Exposed Pad | 
                                    
                                                                        
                                        | Supplier Device Package | 
                                        64-TQFP-EP (10x10) | 
                                    
                                                                        
                                        | Other Names | 
                                        2156-851021AYLF | 
                                    
                                                                        
                                        | Standard Package | 
                                        1 | 
                                    
                                                                                                        
                            
                         
                                                Clock Fanout Buffer (Distribution) IC 1:21 250 MHz 64-TQFP Exposed Pad