Non-volatile flip-flop
A flip-flop has an output control node and an isolation switch selectively couples a retention sense node to the output control node. A sense circuit selectively couples an external sense current source to the retention sense node and to magnetic tunneling junction (MTJ) elements. Optionally a write circuit selectively injects a write current through one MTJ element and then another MTJ element. Optionally, a write circuit injects a write current through a first MTJ element concurrently with injecting a write current through a second MTJ element.
Industry-Academic Cooperation Foundation, Yonsei University QUALCOMM Incorporated
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Jung Pill Jisu Kyungho Youngdon Seung H. Seong-Ook
Kim Kim Ryu Jung Kang Jung