KF33BD-TR datasheet by STMicroelectronics

KF33BD-TR Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the KF33BD-TR?
  The recommended operating voltage range for the KF33BD-TR is 1.65 V to 3.6 V.
• How do I handle the power-on reset (POR) and brown-out reset (BOR) in the KF33BD-TR?
  The KF33BD-TR has an internal POR and BOR circuitry. The POR is triggered when the voltage supply rises above 1.5 V, and the BOR is triggered when the voltage supply falls below 1.4 V. No external components are required for POR and BOR.
• What is the maximum clock frequency supported by the KF33BD-TR?
  The KF33BD-TR supports a maximum clock frequency of 32 MHz.
• How do I configure the GPIO pins on the KF33BD-TR?
  The GPIO pins on the KF33BD-TR can be configured as input or output using the GPIOx_MODER register. The GPIO pins can also be configured as analog or digital using the GPIOx_OTYPER register.
• What is the purpose of the internal voltage regulator (IVR) in the KF33BD-TR?
  The internal voltage regulator (IVR) in the KF33BD-TR provides a stable internal voltage supply to the core and peripherals, allowing the device to operate from a single external voltage supply.