I am relatively new on how to use this chip (I just discovered it ten minutes ago), and I found one link on Amazon (http://www.amazon.com/2013newestseller-L293d-Stepper-Motor-Driver/dp/B00GWF15FG/ref=sr_1_2?ie=UTF8&qid=1403478075&sr=8-2&keywords=l293d). It says that
"Logical "0" input voltage up to 1.5V (High noise immunity)"
Does this mean I can only put 1.5 volts into it from the arduino using PWM? I thought that for the chip to run the motor at the max voltage in the battery connected, you put 5v into pins 1 and 9. Is it 5 or 1.5? Is it saying something else here?