CD74HCT154E datasheet by Texas Instruments

CD74HCT154E Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HCT154E?
  The maximum frequency of operation for the CD74HCT154E is 30 MHz.
• Can I use the CD74HCT154E in a 5V system?
  Yes, the CD74HCT154E is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 4.5V to 5.5V supply voltage.
• How do I handle the enable inputs (E1, E2, E3, E4) when not in use?
  When not in use, the enable inputs (E1, E2, E3, E4) should be tied to VCC or GND, depending on the desired state of the output. Leaving them floating can cause unpredictable behavior.
• What is the propagation delay time for the CD74HCT154E?
  The propagation delay time for the CD74HCT154E is typically around 10-15 ns, but this can vary depending on the operating conditions and load capacitance.
• Can I use the CD74HCT154E in a 3.3V system?
  No, the CD74HCT154E is not compatible with 3.3V systems. It's designed to operate at 4.5V to 5.5V, and using it at 3.3V may result in reduced performance or malfunction.