Accordingly, a small scale refresh counter circuit with {HEAD ~ high degree} of {TAIL ~ flexibility} in control can be realized 
Accordingly , a small scale refresh counter circuit with { HEAD ~ high degree } of { TAIL ~ flexibility } in control can be realized
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH