SN74LVTH574DWR datasheet by Texas Instruments

SN74LVTH574DWR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74LVTH574DWR can handle?
  The maximum clock frequency of the SN74LVTH574DWR is 100 MHz.
• How do I ensure that the flip-flops are properly initialized during power-up?
  To ensure proper initialization, connect the preset (PRE) and clear (CLR) inputs to VCC or GND, depending on the desired initial state, and hold them in that state until the power supply has stabilized.
• What is the recommended termination scheme for the outputs of the SN74LVTH574DWR?
  Texas Instruments recommends using a 22-ohm to 33-ohm series resistor in conjunction with a 10-pF to 22-pF capacitive load to minimize ringing and ensure signal integrity.
• Can I use the SN74LVTH574DWR in a 3.3V system?
  Yes, the SN74LVTH574DWR is compatible with 3.3V systems, but ensure that the input signals are within the recommended voltage range (VCC - 0.5V to VCC + 0.5V) to maintain proper operation.
• How do I handle the asynchronous preset (PRE) and clear (CLR) inputs?
  The preset and clear inputs are asynchronous, meaning they can be asserted at any time, including during clock transitions. However, to avoid potential metastability issues, it is recommended to synchronize these inputs to the clock signal or use them only during initialization or reset sequences.