{TAIL ~ The flip flop} provides an output that is only dependent on the very fast fall times of the outputs of {HEAD ~ the basic level shifter} 
{ TAIL ~ The flip flop } provides an output that is only dependent on the very fast fall times of the outputs of { HEAD ~ the basic level shifter }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD