74VHCT574ATTR datasheet by STMicroelectronics

74VHCT574ATTR Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the 74VHCT574ATTR?
  The maximum operating frequency of the 74VHCT574ATTR is 100 MHz, but it can vary depending on the output load and the system design.
• How do I ensure signal integrity when using the 74VHCT574ATTR in a high-speed design?
  To ensure signal integrity, use a low-impedance PCB design, keep signal traces short, and use termination resistors if necessary. Also, consider using a clock buffer or a signal repeater to maintain signal quality.
• Can I use the 74VHCT574ATTR in a 3.3V system?
  Yes, the 74VHCT574ATTR 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 power sequencing when using the 74VHCT574ATTR in a system with multiple power rails?
  Ensure that the VCC pin is powered up before the input signals, and that the input signals are stable before the clock signal is applied. Also, consider using a power sequencing controller or a reset signal to manage power-up and power-down sequences.
• What is the recommended termination scheme for the 74VHCT574ATTR outputs?
  The recommended termination scheme for the 74VHCT574ATTR outputs is a series terminator (e.g., 33Ω) for point-to-point connections, or a parallel terminator (e.g., 50Ω) for bus connections. However, the optimal termination scheme may vary depending on the system design and layout.