HEF4028BP,652 datasheet by NXP Semiconductors

HEF4028BP,652 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for HEF4028BP?
  The recommended operating voltage range for HEF4028BP is 4.5V to 15.5V, with a typical voltage of 5V or 10V.
• How do I handle the input voltage thresholds for the HEF4028BP?
  The input voltage thresholds for the HEF4028BP are typically 30% and 70% of the supply voltage (VDD). For example, if VDD is 5V, the thresholds would be 1.5V and 3.5V.
• What is the maximum frequency of operation for the HEF4028BP?
  The maximum frequency of operation for the HEF4028BP is typically 10 MHz, but this can vary depending on the specific application and operating conditions.
• How do I ensure proper power sequencing for the HEF4028BP?
  To ensure proper power sequencing, the power supply voltage (VDD) should be applied before the input signals, and the input signals should be stable before the clock signal is applied.
• What is the typical propagation delay for the HEF4028BP?
  The typical propagation delay for the HEF4028BP is around 10-20 ns, but this can vary depending on the specific application and operating conditions.