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STM32F723ZEY6TR Datasheet(PDF) 29 Page - STMicroelectronics |
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STM32F723ZEY6TR Datasheet(HTML) 29 Page - STMicroelectronics |
29 / 229 page DS11853 Rev 6 29/229 STM32F722xx STM32F723xx Functional overview 49 –The VDDUSB rising and falling time rate specifications must be respected – In the operating mode phase, VDDUSB could be lower or higher than VDD: - If the USB (USB OTG_HS/OTG_FS) is used, the associated GPIOs powered by VDDUSB are operating between VDDUSB_MIN and VDDUSB_MAX. - The VDDUSB supplies both USB transceiver (USB OTG_HS and USB OTG_FS). If only one USB transceiver is used in the application, the GPIOs associated to the other USB transceiver are still supplied by VDDUSB. - If the USB (USB OTG_HS/OTG_FS) is not used, the associated GPIOs powered by VDDUSB are operating between VDD_MIN and VDD_MAX. Figure 8. VDDUSB connected to VDD power supply Figure 9. VDDUSB connected to external power supply V DD_MIN time V DD= VDDA = VDDUSB Power-on Power-down Operating mode V DD_MAX VDD MS37591V1 MS37590V1 V DDUSB_MIN V DD_MIN time V DDUSB_MAX USB functional area V DD =VDDA USB non functional area V DDUSB Power-on Power-down Operating mode USB non functional area |
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