A method and apparatus for simultaneous differential data...

G - Physics – 11 – C

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G11C 7/10 (2006.01) G11C 7/06 (2006.01)

Patent

CA 2414248

A differential data sensing and capture circuit, includes a differential input stage circuit for receiving respective ones of said differential data signals and having first and second output nodes. A latch element is provided, having first and second complementary inputs coupled to receive signals from said respective first and second output nodes. A gating circuit dynamically enables and disables a clock signal to the differential input stage in response to an enable signal, such that power consumption in said differential input stage is conserved. In a further embodiment the enable signal is a complementary clock input signal.

La présente invention concerne un circuit de détection et de saisie de données différentielles qui comprend un circuit d'étage différentiel d'entrée destiné à recevoir les signaux de données différentielles respectifs, lequel circuit comporte un premier et un second noeud de sortie. Un élément de verrouillage possède une première et une seconde sorties complémentaires qui sont couplées pour recevoir les signaux en provenance des premier et second noeuds de sortie respectifs. Un circuit de portillonnage active et désactive de façon dynamique un signal d'horloge adressé à l'étage différentiel d'entrée en réponse à un signal d'activation de manière à préserver la consommation d'énergie de l'étage différentiel d'entrée. Dans un autre mode de réalisation, le signal d'activation est un signal d'horloge d'entrée complémentaire.

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