74VHCT238ATTR datasheet by STMicroelectronics

74VHCT238ATTR Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the 74VHCT238ATTR?
  The recommended operating voltage range for the 74VHCT238ATTR is 4.5V to 5.5V, with a typical voltage of 5V.
• How do I ensure signal integrity when using the 74VHCT238ATTR in a high-speed application?
  To ensure signal integrity, use a low-impedance PCB design, keep signal traces short, and use termination resistors to match the impedance of the transmission line. Additionally, consider using a signal integrity analysis tool to simulate and optimize your design.
• What is the maximum clock frequency supported by the 74VHCT238ATTR?
  The maximum clock frequency supported by the 74VHCT238ATTR is 100 MHz, but this can vary depending on the specific application and operating conditions. It's recommended to consult the datasheet and perform simulations to determine the maximum clock frequency for your specific design.
• How do I handle power sequencing when using the 74VHCT238ATTR in a power-sensitive application?
  To handle power sequencing, ensure that the power supply voltage (VCC) is applied before the input signals, and that the input signals are held in a valid state until the power supply voltage has reached its minimum specified value. Additionally, consider using a power sequencing controller or a voltage supervisor to ensure proper power-up and power-down sequencing.
• What is the ESD protection level of the 74VHCT238ATTR?
  The 74VHCT238ATTR has an ESD protection level of 2 kV according to the Human Body Model (HBM) and 150 V according to the Machine Model (MM). This means that the device can withstand electrostatic discharges up to 2 kV without damage.