 a read word line that controls two read transistors wherein a first bottom electrode which contacts the MTJ cell in {TAIL ~ a first bit sub cell} is connected to a ground voltage through {HEAD ~ a first read transistor}, and a second bottom electrode that contacts the MTJ cell in the second bit sub cell is connected to a ground voltage through a second read transistor; and 
a read word line that controls two read transistors wherein a first bottom electrode which contacts the MTJ cell in { TAIL ~ a first bit sub cell } is connected to a ground voltage through { HEAD ~ a first read transistor } , and a second bottom electrode that contacts the MTJ cell in the second bit sub cell is connected to a ground voltage through a second read transistor ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH