SN74LVC74ADT datasheet by Texas Instruments

SN74LVC74ADT Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74LVC74ADT can handle?
  The maximum clock frequency of the SN74LVC74ADT is 100 MHz, but it can vary depending on the operating conditions and the quality of the clock signal.
• How do I ensure that the SN74LVC74ADT is properly powered?
  To ensure proper power supply, connect VCC to a 1.65V to 5.5V power source, and GND to a reliable ground. Also, decouple the power supply with a 0.1uF capacitor to reduce noise and ensure stable operation.
• What is the maximum current that the SN74LVC74ADT can sink or source?
  The SN74LVC74ADT can sink or source up to 24mA of current per output pin, but it's recommended to limit the current to 12mA or less to ensure reliable operation and prevent overheating.
• How do I handle the asynchronous reset input (CLR) and preset input (PRE) of the SN74LVC74ADT?
  The CLR and PRE inputs are asynchronous, meaning they can be asserted at any time, even when the clock is low. To ensure proper operation, assert CLR or PRE only when the clock is low, and keep them inactive when the clock is high.
• What is the propagation delay of the SN74LVC74ADT?
  The propagation delay of the SN74LVC74ADT varies depending on the operating conditions, but it's typically around 3.5ns to 5ns for the clock-to-output delay (tCKHQ) and 2.5ns to 4ns for the data-to-output delay (tDHQ).