CD54HC74F datasheet by Texas Instruments

CD54HC74F Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the CD54HC74F can handle?
  The CD54HC74F can handle clock frequencies up to 25 MHz.
• How do I ensure that the flip-flops are properly initialized on power-up?
  To ensure proper initialization, connect the preset (PRE) and clear (CLR) inputs to VCC or GND, and use a pull-up or pull-down resistor to prevent floating inputs.
• What is the recommended operating voltage range for the CD54HC74F?
  The recommended operating voltage range for the CD54HC74F is 2V to 6V, with a typical operating voltage of 5V.
• Can I use the CD54HC74F in a 3.3V system?
  Yes, the CD54HC74F can operate at 3.3V, but the input voltage thresholds and output voltage levels may vary. Consult the datasheet for specific details.
• How do I handle asynchronous inputs to the flip-flops?
  To handle asynchronous inputs, use synchronous inputs or add external synchronization circuits to ensure proper data capture and prevent metastability issues.