The method 11, wherein the output buffer is disabled by a control circuit coupled to {TAIL ~ the output node} of {HEAD ~ the output buffer} 
The method 11 , wherein the output buffer is disabled by a control circuit coupled to { TAIL ~ the output node } of { HEAD ~ the output buffer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD