Random code generator with differential cells and associated control method

A random code generator includes a differential cell array, a power circuit, a voltage detector, a control circuit and a read/write circuit. The power circuit provides a supply voltage to a node. The differential cell array includes plural differential cells. Each differential cell includes two sub-...

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Bibliographische Detailangaben
Hauptverfasser: Lu, Chun-Hung, Huang, Shih-Chan, Lin, Chun-Hung
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A random code generator includes a differential cell array, a power circuit, a voltage detector, a control circuit and a read/write circuit. The power circuit provides a supply voltage to a node. The differential cell array includes plural differential cells. Each differential cell includes two sub-cells. The two sub-cells have process variations. During the enrollment, one sub-cell is programmed, and the other sub-cell is subjected to a program inhibition. In addition, a random code is generated according to the storage state of the differential cell.