| Parameters | 
                                    
                                                                                                            
                                        | Mfr | 
                                        Texas Instruments | 
                                    
                                                                        
                                        | Series | 
                                        74HC | 
                                    
                                                                        
                                        | Package | 
                                        Bulk | 
                                    
                                                                        
                                        | Product Status | 
                                        Active | 
                                    
                                                                        
                                        | Type | 
                                        Identity Comparator | 
                                    
                                                                        
                                        | Number of Bits | 
                                        8 | 
                                    
                                                                        
                                        | Output | 
                                        Active Low | 
                                    
                                                                        
                                        | Output Function | 
                                        A=B | 
                                    
                                                                        
                                        | Voltage - Supply | 
                                        2V ~ 6V | 
                                    
                                                                        
                                        | Current - Output High, Low | 
                                        5.2mA, 5.2mA | 
                                    
                                                                        
                                        | Max Propagation Delay @ V, Max CL | 
                                        29ns @ 6V, 50pF | 
                                    
                                                                        
                                        | Current - Quiescent (Iq) | 
                                        8 µA | 
                                    
                                                                        
                                        | Operating Temperature | 
                                        -55°C ~ 125°C | 
                                    
                                                                        
                                        | Package / Case | 
                                        20-SOIC (0.209", 5.30mm Width) | 
                                    
                                                                        
                                        | Supplier Device Package | 
                                        20-SO | 
                                    
                                                                        
                                        | Mounting Type | 
                                        Surface Mount | 
                                    
                                                                        
                                        | Base Product Number | 
                                        74HC688 | 
                                    
                                                                        
                                        | RoHS Status | 
                                        Not applicable | 
                                    
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 
                                        3  (168 Hours) | 
                                    
                                                                        
                                        | REACH Status | 
                                        Vendor Undefined | 
                                    
                                                                        
                                        | ECCN | 
                                        EAR99 | 
                                    
                                                                        
                                        | HTSUS | 
                                        8542.39.0001 | 
                                    
                                                                        
                                        | Standard Package | 
                                        1 | 
                                    
                                                                                                        
                            
                         
                                                Magnitude Comparator Bit Active Low Output A=B 20-SO