Programmable POR circuit with two switching thresholds
AssigneeSTMicroelectronics S.r.l.
InventorFrancesco La Rosa
Life of this patent
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AssigneeSTMicroelectronics S.r.l.
InventorFrancesco La Rosa
Estimating the term…
A power on reset circuit (POR) includes a first reset circuit for delivering a first reset signal when a supply voltage of the POR circuit is between a first low threshold and a first high threshold, and a second reset circuit for delivering a second reset signal when the supply voltage is between a second low threshold and a second high threshold. The second high threshold is less than the first high threshold. The POR circuit further includes at least one electrically erasable and programmable non-volatile memory cell. A delivery circuit outputs the first reset signal or the second reset based upon on whether the at least one electrically erasable and programmable non-volatile memory cell is in an erased or programmed state. The POR circuit has a threshold for outputting the first or second reset signal that is programmable according to the intended application.
POR circuit (POR3, POR4) comprising means (POR1) for delivering a first reset signal (RSTH) when the supply voltage (Vcc) of the POR circuit is between a first low threshold and a first high threshold (V2H), characterized in that it comprises, in addition:
Method for delivering a reset signal (RST) to an integrated circuit, comprising the step of providing means (POR1) for delivering a first reset signal (RSTH) when the supply voltage (Vcc) of the integrated circuit is between a first low threshold and a first high threshold (V2H), characterized in that it comprises the following steps in addition:
Dependencies are inferred from the claim text.