| Parameters | 
                                                                                                                        
                                                | Operating Temperature | 0°C ~ 70°C | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 16-SOIC (0.154", 3.90mm Width) | 
                                                                                    
                                                | Supplier Device Package | 16-SOIC | 
                                                                                    
                                                | Base Product Number | 74AS161 | 
                                                                                    
                                                | RoHS Status | ROHS3 Compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.39.0001 | 
                                                                                    
                                                | Standard Package | 200 | 
                                                                                    
                                                | Mfr | Texas Instruments | 
                                                                                    
                                                | Series | 74AS | 
                                                                                    
                                                | Package | Tube | 
                                                                                    
                                                | Product Status | Obsolete | 
                                                                                    
                                                | Logic Type | Binary Counter | 
                                                                                    
                                                | Direction | Up | 
                                                                                    
                                                | Number of Elements | 1 | 
                                                                                    
                                                | Number of Bits per Element | 4 | 
                                                                                    
                                                | Reset | Asynchronous | 
                                                                                    
                                                | Timing | Synchronous | 
                                                                                    
                                                | Count Rate | 40 MHz | 
                                                                                    
                                                | Trigger Type | Positive Edge | 
                                                                                    
                                                | Voltage - Supply | 4.5 V ~ 5.5 V | 
                                                                                                                
                                
                             
                                                Counter IC Binary Counter 1 Element 4 Bit Positive Edge 16-SOIC