CD54HCT244F datasheet by Texas Instruments

CD54HCT244F Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the CD54HCT244F?
  The maximum operating frequency of the CD54HCT244F is 50 MHz, but it can operate up to 100 MHz with a reduced output current.
• How do I handle the power-up and power-down sequencing of the CD54HCT244F?
  It is recommended to power up the VCC pin before the input signals and power down the VCC pin after the input signals to prevent unwanted output states.
• What is the recommended operating voltage range for the CD54HCT244F?
  The recommended operating voltage range for the CD54HCT244F is 4.5V to 5.5V, but it can operate down to 3V with reduced performance.
• How do I ensure the CD54HCT244F is properly terminated?
  The CD54HCT244F requires a termination resistor (typically 1 kΩ to 10 kΩ) between the output and VCC to prevent oscillations and ensure proper signal integrity.
• Can I use the CD54HCT244F in a 3.3V system?
  Yes, the CD54HCT244F can be used in a 3.3V system, but the output voltage will be reduced, and the device may not meet the specified propagation delay and output current.