SN74ALVC245DWR datasheet by Texas Instruments

SN74ALVC245DWR Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SN74ALVC245DWR?
  The maximum operating frequency of the SN74ALVC245DWR is 100 MHz, but it can vary depending on the output load and supply voltage.
• How do I ensure signal integrity when using the SN74ALVC245DWR in a high-speed application?
  To ensure signal integrity, use a low-impedance PCB design, keep signal traces short, and use termination resistors if necessary. Also, ensure that the power supply is clean and well-regulated.
• Can I use the SN74ALVC245DWR in a 3.3V system, and if so, what are the limitations?
  Yes, the SN74ALVC245DWR can be used in a 3.3V system, but the output voltage will be limited to 3.3V. Additionally, the input voltage threshold may be affected, and the device may not meet the specified propagation delay times.
• How do I handle power sequencing when using the SN74ALVC245DWR in a system with multiple power supplies?
  To avoid latch-up or damage, ensure that the VCC supply is powered up before the input signals, and that the input signals are stable before the VCC supply is powered down.
• What is the recommended layout and routing for the SN74ALVC245DWR to minimize EMI and noise?
  Use a symmetrical layout, keep signal traces away from the device's power pins, and use a ground plane to reduce EMI and noise. Also, use a decoupling capacitor between VCC and GND to filter out noise.