Control buffer 122 receives {HEAD ~ external control signals} through {TAIL ~ a plurality} of control pins, and issues corresponding internal control signals to control circuit 123 
through
Control buffer 122 receives { HEAD ~ external control signals } through { TAIL ~ a plurality } of control pins , and issues corresponding internal control signals to control circuit 123
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH