LOW SENSING CURRENT NON-VOLATILE FLIP-FLOP

LOW SENSING CURRENT NON-VOLATILE FLIP-FLOP

A low sensing current non volatile flip flop includes a first stage to sense a resistance difference between two magnetic tunnel junctions (MTJs) and a second stage having circuitry to amplify the output of the first stage. The output of the first stage is initially pre-charged and determined by the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JUNG YOUNGDON, JUNG SEONG-OOK, KIM JUNG PILL, RYU KYUNGHO, KANG SEUNG H, KIM JISU
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Beschreibung
Zusammenfassung:A low sensing current non volatile flip flop includes a first stage to sense a resistance difference between two magnetic tunnel junctions (MTJs) and a second stage having circuitry to amplify the output of the first stage. The output of the first stage is initially pre-charged and determined by the resistance difference of the two MTJs when the sensing operation starts. The first stage does not have a pull-up path to a source voltage (VDD), and therefore does not have a DC path from VDD to ground during the sensing operation. A slow sense enable (SE) signal slope reduces peak sensing current in the first stage. A secondary current path reduces the sensing current duration of the first stage.