STK22C48-NF25I Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for STK22C48-NF25I?
  The recommended operating voltage range for STK22C48-NF25I is 4.5V to 5.5V, with a typical voltage of 5V.
• How do I handle the power-up and power-down sequences for STK22C48-NF25I?
  It is recommended to power up the VCC pin first, followed by the VPP pin, and then the other input pins. During power-down, the sequence should be reversed. Additionally, it is recommended to add a 10uF capacitor between VCC and GND to ensure stable power supply.
• What is the maximum clock frequency supported by STK22C48-NF25I?
  The maximum clock frequency supported by STK22C48-NF25I is 20MHz, but it can be operated at lower frequencies as well.
• How do I implement a reliable reset circuit for STK22C48-NF25I?
  A reliable reset circuit can be implemented using a resistor-capacitor (RC) network connected to the RESET pin. The recommended values are R = 1kΩ and C = 10nF. This ensures that the device is properly reset during power-up and power-down cycles.
• What is the maximum current that can be sourced or sunk by the I/O pins of STK22C48-NF25I?
  The maximum current that can be sourced or sunk by the I/O pins of STK22C48-NF25I is ±20mA. However, it is recommended to limit the current to ±10mA to ensure reliable operation.