HCF4020BEY datasheet by STMicroelectronics

HCF4020BEY Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the HCF4020BEY?
  The recommended operating voltage range for the HCF4020BEY is 4.5V to 15.5V, with a typical voltage of 5V.
• How do I ensure the HCF4020BEY is properly powered on and off?
  To ensure proper power-on and power-off, it is recommended to use a power-on reset circuit and a decoupling capacitor (e.g., 100nF) between VCC and GND.
• What is the maximum clock frequency supported by the HCF4020BEY?
  The maximum clock frequency supported by the HCF4020BEY is 10MHz, but it can be operated at higher frequencies with reduced voltage and/or reduced load capacitance.
• How do I handle the output enable (OE) pin?
  The output enable (OE) pin should be connected to GND to enable the outputs, and to VCC to disable the outputs. Leaving OE unconnected or floating can cause unpredictable behavior.
• What is the maximum input voltage that can be applied to the HCF4020BEY?
  The maximum input voltage that can be applied to the HCF4020BEY is 15.5V, but it is recommended to keep input voltages within the recommended operating voltage range (4.5V to 15.5V) for reliable operation.