CD74HCT85M datasheet by Texas Instruments

CD74HCT85M Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the CD74HCT85M can handle?
  The CD74HCT85M can handle clock frequencies up to 30 MHz.
• How do I ensure that the CD74HCT85M is properly powered?
  The CD74HCT85M requires a power supply voltage (VCC) of 4.5V to 5.5V, and it is 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 CD74HCT85M?
  The propagation delay of the CD74HCT85M is typically around 10ns to 15ns, depending on the operating conditions and the specific application.
• Can I use the CD74HCT85M in a 3.3V system?
  No, the CD74HCT85M is not designed to operate at 3.3V. It requires a minimum supply voltage of 4.5V to function properly.
• How do I handle the asynchronous reset input (R) of the CD74HCT85M?
  The asynchronous reset input (R) should be tied to VCC through a pull-up resistor (e.g., 1kΩ) to ensure that the device is properly reset. The reset input should be driven low to reset the device, and then released to allow normal operation.