{TAIL ~ The falling edge 1 shot circuits} output {HEAD ~ a narrow pulse} when these outputs transition from a high state to a low state 
{ TAIL ~ The falling edge 1 shot circuits } output { HEAD ~ a narrow pulse } when these outputs transition from a high state to a low state
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH