CD74FCT843AM datasheet by Texas Instruments

CD74FCT843AM Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for CD74FCT843AM?
  The recommended operating voltage range for CD74FCT843AM is 4.5V to 5.5V, although it can operate from 4.2V to 5.7V with reduced performance.
• How do I ensure signal integrity when using CD74FCT843AM in high-speed applications?
  To ensure signal integrity, use a low-impedance PCB design, keep signal traces short, and use termination resistors or series resistors to reduce reflections and ringing.
• Can I use CD74FCT843AM in a 3.3V system?
  While CD74FCT843AM can operate at 3.3V, its performance may be degraded, and it may not meet the specified timing and voltage parameters. It's recommended to use a 5V-compatible device or a voltage translator for 3.3V systems.
• How do I handle power sequencing when using CD74FCT843AM with other devices?
  To avoid latch-up or damage, ensure that the power supply to CD74FCT843AM is turned on after the power supply to other devices, and that the input signals are stable before the power supply is turned on.
• What is the maximum clock frequency supported by CD74FCT843AM?
  The maximum clock frequency supported by CD74FCT843AM is 100 MHz, although it can operate at higher frequencies with reduced performance and increased power consumption.