Catalog > Semiconductors > Integrated Circuits IC IC 74LS290 4-Bit Binary Counter Decade IC DIP-14 4.06 ZAR inc for 1 Each 21 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Supply Voltage : 4.75 - 5.25V Input HIGH Voltage : 2.0V Input LOW Voltage : 0.8V Input Clamp Diode Voltage : -1.5V Output LOW Voltage : 0.5V Short Circuit Current : -100mA