Hi All
Im trying to get the above chip to work but without any luck, probably something simple that Im missing. Looking at the data sheet for the chip I have all the pins sorted, 7 to ground, 5 volts to 14 and using pins 1 & 2 for inputs. However I can't get any change out of pin 3 (output) no matter what I do with pins 1 & 2. From what I understand if either of the inputs goes high, pin 3 will go high otherwise remain low. What voltage does either of the input pins require to be classed as high ? Is there a straight forward way to test the chip.
Many thanks for any help
:?