Catalog > Semiconductors > Integrated Circuits IC IC 74LS55 Gate AND/OR Invert 2WID 4IN 14 0.86 ZAR inc for 1 Each 223 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Operating Voltage: 4.75V-5.25V (Typical 5V) Number of Pins: 14 Logic Family: TTL Functions: AND-OR-INVERT gate with expandable inputs Inputs/Outputs: 4 inputs, 1 output, expander inputs