Most data sheets give information on the minimum hi TTL input.
What about the Maximum high? The same as VCC?
What about the Maximum high? The same as VCC?
It is always safest if you avoid taking an input to a voltage greater than the Vcc. However there are devices which are designed to permit the input to be greater than Vcc. Consult the manufacturer's datasheet to determine the maximum input voltage.What if my input signal is higher than VCC?
Usually is the same as Vcc but if you have a higher input voltage you have use a voltage divider to reduce it to the logic levels.Most data sheets give information on the minimum hi TTL input.
What about the Maximum high? The same as VCC?