CD74HCT251E datasheet by Texas Instruments

CD74HCT251E Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HCT251E?
  The maximum frequency of operation for the CD74HCT251E is 30 MHz.
• Can I use the CD74HCT251E in a 5V system?
  Yes, the CD74HCT251E is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 5V supply.
• How do I handle the enable inputs (E1, E2, E3, and E4) when not in use?
  When not in use, the enable inputs (E1, E2, E3, and E4) should be tied to VCC or GND, depending on the desired state of the output.
• What is the propagation delay time for the CD74HCT251E?
  The propagation delay time for the CD74HCT251E is typically around 10-15 ns, but this can vary depending on the operating conditions and load capacitance.
• Can I use the CD74HCT251E in a 3.3V system?
  Yes, the CD74HCT251E is compatible with 3.3V systems, but the output voltage will be limited to 3.3V, and the input voltage thresholds may be affected.