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AN4899. Application note STM32 microcontroller GPIO configuration for hardware settings and low-power consumption Introduction The STM32 microcontroller general-purpose input/output pin (GPIO) provides many ways to interface with external circuits within an application framework. This application note provides basic information about GPIO configurations as well as guidelines for hardware and software developers to optimize the power performance of their STM32 32-bit Arm . Cortex MCUs using the GPIO pin. This application note must be used in conjunction with the related STM32 reference manual and datasheet available at August 2021 AN4899 Rev 2 1/31. 1. Contents AN4899.
the product datasheet for details. In Figure 1 and Figure 2, the V. DD. supply may refer to V. DD. or V. DDIO2. according to the STM32 product considered. Refer to the product datasheet for details. Figure 1. Three-volt compliant GPIO structure (TC) Note: The parasitic diode in the analog domain is connected to V. DDA. and cannot be used as a ...
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