{HEAD ~ Circuit} and method for generating a sense amplifier enable {TAIL ~ signal} based on a voltage level of a tracking bitline 
{ HEAD ~ Circuit } and method for generating a sense amplifier enable { TAIL ~ signal } based on a voltage level of a tracking bitline
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH