1. Increasing MTJ Density
Analysis of Sharing Axis Transistors (2 MTJs)

3. Writing a “0” (Rp) Ipar > 0 and MTJ2 is AP
Iwrite
Ipar < 0 and MTJ2 is P
Itran
Ipar
Constraints so we don’t disturb MTJs not on the WL

4. Writing a “1” (Rap) Ipar > 0 and MTJ2 is P
Iwrite
Ipar < 0 and MTJ2 is AP
Itran
Ipar
Constraints so we don’t disturb MTJs not on the WL

5. Conclusion Sharing of Axis transistors is not possible!
Plenty of margin for writing a “0”
Zero margin for writing a “1”

6. Example (1)

7. Example (2)

8. Example (3)

9. Example (4)

10. Example (5)

11. Example (6)