| Parameters | 
                                    
                                                                                                                        
                                                | Mfr | 
                                                National Semiconductor | 
                                            
                                                                                    
                                                | Series | 
                                                54LS | 
                                            
                                                                                    
                                                | Package | 
                                                Bulk | 
                                            
                                                                                    
                                                | Product Status | 
                                                Active | 
                                            
                                                                                    
                                                | Logic Type | 
                                                Binary Counter | 
                                            
                                                                                    
                                                | Direction | 
                                                Up, Down | 
                                            
                                                                                    
                                                | Number of Elements | 
                                                1 | 
                                            
                                                                                    
                                                | Number of Bits per Element | 
                                                4 | 
                                            
                                                                                    
                                                | Reset | 
                                                Synchronous | 
                                            
                                                                                    
                                                | Timing | 
                                                Synchronous | 
                                            
                                                                                    
                                                | Count Rate | 
                                                20 MHz | 
                                            
                                                                                    
                                                | Trigger Type | 
                                                Positive Edge | 
                                            
                                                                                    
                                                | Voltage - Supply | 
                                                4.5 V ~ 5.5 V | 
                                            
                                                                                    
                                                | Operating Temperature | 
                                                -55°C ~ 125°C (TA) | 
                                            
                                                                                    
                                                | Mounting Type | 
                                                Surface Mount | 
                                            
                                                                                    
                                                | Package / Case | 
                                                16-CFlatpack | 
                                            
                                                                                    
                                                | Supplier Device Package | 
                                                16-CFP | 
                                            
                                                                                    
                                                | Base Product Number | 
                                                54LS193 | 
                                            
                                                                                    
                                                | RoHS Status | 
                                                RoHS non-compliant | 
                                            
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 
                                                3  (168 Hours) | 
                                            
                                                                                    
                                                | REACH Status | 
                                                Vendor Undefined | 
                                            
                                                                                    
                                                | ECCN | 
                                                EAR99 | 
                                            
                                                                                    
                                                | HTSUS | 
                                                8542.39.0001 | 
                                            
                                                                                    
                                                | Standard Package | 
                                                1 | 
                                            
                                                                                                                
                                
                             
                                                Counter IC Binary Counter 1 Element 4 Bit Positive Edge 16-CFP