| Parameters | 
                                                                                                                        
                                                | Mfr | NXP USA Inc. | 
                                                                                    
                                                | Series | 74HC | 
                                                                                    
                                                | Package | Bulk | 
                                                                                    
                                                | Product Status | Active | 
                                                                                    
                                                | Logic Type | Binary Counter | 
                                                                                    
                                                | Direction | Up | 
                                                                                    
                                                | Number of Elements | 2 | 
                                                                                    
                                                | Number of Bits per Element | 4 | 
                                                                                    
                                                | Reset | Asynchronous | 
                                                                                    
                                                | Timing | Synchronous | 
                                                                                    
                                                | Count Rate | 69 MHz | 
                                                                                    
                                                | Trigger Type | Positive, Negative | 
                                                                                    
                                                | Voltage - Supply | 2 V ~ 6 V | 
                                                                                    
                                                | Operating Temperature | -40°C ~ 125°C | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 16-SOIC (0.154", 3.90mm Width) | 
                                                                                    
                                                | Supplier Device Package | 16-SO | 
                                                                                    
                                                | Base Product Number | 74HC4520 | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.39.0001 | 
                                                                                    
                                                | Standard Package | 1,070 | 
                                                                                                                
                                
                             
                                                Counter IC Binary Counter 2 Element 4 Bit Positive, Negative 16-SO