CY8C4246PVI-DS402 - Infineon

CY8C4246PVI-DS402 Frequently Asked Questions (FAQs)

• What is the recommended crystal oscillator frequency for this microcontroller?
  The recommended crystal oscillator frequency for the CY8C4246PVI-DS402 is 32.768 kHz. This frequency is used as the clock source for the internal real-time clock (RTC) and watchdog timer.
• How do I configure the GPIO pins as analog or digital inputs?
  The GPIO pins on the CY8C4246PVI-DS402 can be configured as analog or digital inputs using the Pin Configuration Register (PCR). The PCR register is used to set the pin mode, drive mode, and input buffer mode for each GPIO pin.
• What is the maximum current that can be sourced or sunk by the GPIO pins?
  The maximum current that can be sourced or sunk by the GPIO pins on the CY8C4246PVI-DS402 is 25 mA. However, the total current sourced or sunk by all GPIO pins should not exceed 150 mA to ensure reliable operation.
• How do I use the internal voltage regulator to power external components?
  The internal voltage regulator on the CY8C4246PVI-DS402 can be used to power external components by connecting the VREG pin to the external component's power pin. The internal voltage regulator can supply up to 50 mA of current to external components.
• What is the purpose of the VBAT pin, and how should it be connected?
  The VBAT pin on the CY8C4246PVI-DS402 is used to connect a battery or a supercapacitor to provide power to the internal real-time clock (RTC) and other components during power-down modes. The VBAT pin should be connected to a battery or a supercapacitor with a voltage range of 1.8 V to 3.6 V.