{HEAD ~ a first voltage monitor} coupled to {TAIL ~ a first voltage source} at a first input and a first threshold voltage at a second input, the first voltage source operable at a pair of voltages, one voltage higher than the second voltage, 
coupled to
{ HEAD ~ a first voltage monitor } coupled to { TAIL ~ a first voltage source } at a first input and a first threshold voltage at a second input , the first voltage source operable at a pair of voltages , one voltage higher than the second voltage ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH