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STM32L433CB データシート(PDF) 28 Page - STMicroelectronics |
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STM32L433CB データシート(HTML) 28 Page - STMicroelectronics |
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28 / 225 page  Functional overview STM32L433xx 28/225 DS11449 Rev 5 • Shutdown mode The Shutdown mode allows to achieve the lowest power consumption. The internal regulator is switched off so that the VCORE domain is powered off. The PLL, the HSI16, the MSI, the LSI and the HSE oscillators are also switched off. The RTC can remain active (Shutdown mode with RTC, Shutdown mode without RTC). The BOR is not available in Shutdown mode. No power voltage monitoring is possible in this mode, therefore the switch to Backup domain is not supported. SRAM1, SRAM2 and register contents are lost except for registers in the Backup domain. The device exits Shutdown mode when an external reset (NRST pin), a WKUP pin event (configurable rising or falling edge), or an RTC event occurs (alarm, periodic wakeup, timestamp, tamper). The system clock after wakeup is MSI at 4 MHz. |
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