.subckt ND2X1 1 2 3 4 5 6 7
m$1 2 6 1 4 MLVPMOS L=0.25um W=1.5um
m$2 1 5 2 4 MLVPMOS L=0.25um W=1.5um
m$3 3 6 8 7 MLVNMOS L=0.25um W=0.95um
m$4 8 5 2 7 MLVNMOS L=0.25um W=0.95um
.ends ND2X1