CD74ACT109E datasheet by Texas Instruments

CD74ACT109E Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the CD74ACT109E?
  The recommended operating voltage range for the CD74ACT109E is 4.5V to 5.5V, although it can operate as low as 3.5V with reduced performance.
• How do I handle the output enable (OE) pin when using the CD74ACT109E?
  The output enable (OE) pin should be tied low to enable the outputs, and tied high to disable the outputs. Leaving the OE pin floating can cause unpredictable behavior.
• What is the maximum frequency of operation for the CD74ACT109E?
  The maximum frequency of operation for the CD74ACT109E is typically around 100 MHz, although this can vary depending on the specific application and operating conditions.
• How do I ensure proper termination of the outputs when using the CD74ACT109E?
  Proper termination of the outputs is critical to prevent signal reflections and ensure reliable operation. A 50-ohm termination resistor should be used at the far end of the transmission line, and the output should be AC-coupled to the load.
• Can I use the CD74ACT109E in a 3.3V system?
  Yes, the CD74ACT109E can be used in a 3.3V system, but the output voltage will be reduced to around 3.3V. Additionally, the device may not meet the specified propagation delay and transition times at 3.3V.