CD54HCT74F3A datasheet by Texas Instruments

CD54HCT74F3A Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the CD54HCT74F3A?
  The recommended operating voltage range for the CD54HCT74F3A is 4.5V to 5.5V.
• How do I ensure that the flip-flops in the CD54HCT74F3A are properly initialized?
  To ensure proper initialization, it is recommended to assert the Master Reset (MR) input low during power-up or when the device is first powered on.
• What is the maximum clock frequency that the CD54HCT74F3A can handle?
  The maximum clock frequency that the CD54HCT74F3A can handle is 25 MHz.
• Can I use the CD54HCT74F3A in a 3.3V system?
  While the CD54HCT74F3A is specified for 5V operation, it can be used in a 3.3V system, 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 asynchronous reset input (MR) in the CD54HCT74F3A?
  The asynchronous reset input (MR) should be asserted low to reset the flip-flops. The reset input should be synchronized with the clock signal to ensure proper operation.