A limiting circuit is constituted by a clamp circuit which limits {HEAD ~ a potential} of a write word line to a fixed value or {TAIL ~ a lower value} 
to
A limiting circuit is constituted by a clamp circuit which limits { HEAD ~ a potential } of a write word line to a fixed value or { TAIL ~ a lower value }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL