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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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S2-LP Datasheet(PDF) 47 Page - STMicroelectronics |
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S2-LP Datasheet(HTML) 47 Page - STMicroelectronics |
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47 / 90 page  S2-LP Block description DocID029944 Rev 1 47/90 5.8 Low battery indicator The battery indicator can provide the user with an indication of the battery voltage level. There are two blocks to detect battery level: brownout with a fixed threshold and battery level detector with a programmable threshold. The MCU enables optionally these blocks to provide an early warning of impending power failure. It does not reset the system, but gives the MCU time to prepare for an orderly power-down and provides hardware protection of data stored in the program memory. The low battery indicator function is available in any of the S2-LP operation modes. As this function requires the internal bias circuit operation, the overall current consumption in STANDBY, SLEEP, and READY modes increase by 400 µA. 5.9 Voltage reference This block provides the precise reference voltage needed by the internal circuit. |
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