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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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STM32MP157AAA3 Fiches technique(PDF) 30 Page - STMicroelectronics |
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STM32MP157AAA3 Fiches technique(HTML) 30 Page - STMicroelectronics |
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30 / 258 page  Functional overview STM32MP157A 30/258 DS12504 Rev 2 3.8.2 Power supply supervisor The devices have an integrated power-on reset (POR)/ power-down reset (PDR) circuitry coupled with a Brownout reset (BOR) circuitry: • Power-on reset (POR) The POR supervisor monitors VDD power supply and compares it to a fixed threshold. The devices remain in reset mode when VDD is below this threshold, • Power-down reset (PDR) The PDR supervisor monitors VDD power supply. A reset is generated when VDD drops below a fixed threshold. The PDR supervisor can be enabled/disabled through PDR_ON pin. • Brownout reset (BOR) The BOR supervisor monitors VDD power supply. Three BOR thresholds (from 2.1 to 2.7 V) can be configured through option bytes. A reset is generated when VDD drops below this threshold. • Power-on reset VDDCORE (POR_VDDCORE) The POR_VDDCORE supervisor monitors VDDCORE power supply and compares it to a fixed threshold. The VDDCORE domain remain in reset mode when VDDCORE is below this threshold, • Power-down reset VDDCORE (PDR_VDDCORE) The PDR_VDDCORE supervisor monitors VDDCORE power supply. A VDDCORE domain reset is generated when VDDCORE drops below a fixed threshold. The PDR_VDDCORE supervisor can be enabled/disabled through PDR_ON_CORE pin. |
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