{HEAD ~ each} of gate electrodes of said {TAIL ~ first P channel MOS transistor} and said second N channel MOS transistor receives said mode trigger signal 
{ HEAD ~ each } of gate electrodes of said { TAIL ~ first P channel MOS transistor } and said second N channel MOS transistor receives said mode trigger signal
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH