Catalog > Semiconductors > Integrated Circuits IC IC 74LS40 Gate NAND Dual 4-Input 14PD 0.96 ZAR inc for 1 Each 1030 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: Two independent 4-input NAND gates with enhanced output drive capability Inputs/Outputs: 2x 4-input, 2x 1-output