CD74HCT238E datasheet by Texas Instruments

CD74HCT238E Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the CD74HCT238E can handle?
  The CD74HCT238E can handle clock frequencies up to 30 MHz.
• How do I ensure that the CD74HCT238E is properly powered?
  The CD74HCT238E requires a power supply voltage (VCC) of 4.5V to 5.5V, and it's recommended to use a decoupling capacitor of 0.1uF to 1uF between VCC and GND to ensure proper power supply decoupling.
• What is the propagation delay of the CD74HCT238E?
  The propagation delay of the CD74HCT238E is typically around 10ns to 15ns, depending on the operating conditions and load capacitance.
• Can I use the CD74HCT238E in a 3.3V system?
  Yes, the CD74HCT238E can operate at 3.3V, but the output voltage levels may not be compatible with 3.3V logic. It's recommended to use a level translator or a voltage regulator to ensure compatibility.
• How do I handle the thermal considerations for the CD74HCT238E?
  The CD74HCT238E has a maximum junction temperature of 150°C. Ensure good airflow, use a heat sink if necessary, and avoid overheating the device to prevent thermal damage.