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STM32L162VC 数据表(PDF) 14 Page - STMicroelectronics |
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STM32L162VC 数据表(HTML) 14 Page - STMicroelectronics |
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14 / 123 page  Functional overview STM32L162VC, STM32L162RC 14/123 DocID022881 Rev 10 • Stop mode without RTC Stop mode achieves the lowest power consumption while retaining the RAM and register contents. All clocks are stopped, the PLL, MSI RC, HSI and LSI RC, LSE and HSE crystal oscillators are disabled. The voltage regulator is in the low-power mode. The device can be woken up from Stop mode by any of the EXTI line, in 8 µs. The EXTI line source can be one of the 16 external lines. It can be the PVD output, the Comparator 1 event or Comparator 2 event (if internal reference voltage is on). It can also be wakened by the USB wakeup. • Standby mode with RTC Standby mode is used to achieve the lowest power consumption and real time clock. The internal voltage regulator is switched off so that the entire VCORE domain is powered off. The PLL, MSI RC, HSI RC and HSE crystal oscillators are also switched off. The LSE or LSI is still running. After entering Standby mode, the RAM and register contents are lost except for registers in the Standby circuitry (wakeup logic, IWDG, RTC, LSI, LSE Crystal 32K osc, RCC_CSR). The device exits Standby mode in 60 µs when an external reset (NRST pin), an IWDG reset, a rising edge on one of the three WKUP pins, RTC alarm (Alarm A or Alarm B), RTC tamper event, RTC timestamp event or RTC Wakeup event occurs. • Standby mode without RTC Standby mode is used to achieve the lowest power consumption. The internal voltage regulator is switched off so that the entire VCORE domain is powered off. The PLL, MSI RC, HSI and LSI RC, HSE and LSE crystal oscillators are also switched off. After entering Standby mode, the RAM and register contents are lost except for registers in the Standby circuitry (wakeup logic, IWDG, RTC, LSI, LSE Crystal 32K osc, RCC_CSR). The device exits Standby mode in 60 µs when an external reset (NRST pin) or a rising edge on one of the three WKUP pin occurs. Note: The RTC, the IWDG, and the corresponding clock sources are not stopped automatically by entering Stop or Standby mode. Table 3. Functionalities depending on the operating power supply range Functionalities depending on the operating power supply range Operating power supply range DAC and ADC operation USB Dynamic voltage scaling range I/O operation VDD= VDDA = 1.65 to 1.71 V Not functional Not functional Range 2 or Range 3 Degraded speed performance VDD=VDDA= 1.71 to 1.8 V(1) Not functional Not functional Range 1, Range 2 or Range 3 Degraded speed performance VDD=VDDA= 1.8 to 2.0 V(1) Conversion time up to 500 Ksps Not functional Range 1, Range 2 or Range 3 Degraded speed performance |
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