Catalog > Semiconductors > IC - Voltage Regulators 74ALS561 Synchronous 4-Bit Binary Counters With 3-State Outputs 20PIN DIP Part No: 74ALS561 63.25 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Number of Elements 1 Number of Bits per Element 4 Reset Asynchronous/Synchronous Timing Synchronous Count Rate 30 MHz Trigger Type Positive Edge Voltage - Supply 4.5 V ~ 5.5 V Operating Temperature 0°C ~ 70°C Mounting Type Through Hole Package / Case 20-DIP (0.300", 7.62mm) Supplier Device Package 20-PDIP