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