CD74HC253M datasheet by Texas Instruments

CD74HC253M Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HC253M?
  The maximum frequency of operation for the CD74HC253M is 25 MHz, but it can vary depending on the supply voltage and operating conditions.
• How do I ensure signal integrity when using the CD74HC253M?
  To ensure signal integrity, use proper PCB layout techniques, such as keeping signal traces short and away from noise sources, using termination resistors, and providing adequate power supply decoupling.
• Can I use the CD74HC253M with a 5V power supply?
  Yes, the CD74HC253M can operate with a 5V power supply, but it is recommended to use a 3.3V or lower supply voltage to ensure compatibility with most modern digital systems.
• What is the propagation delay of the CD74HC253M?
  The propagation delay of the CD74HC253M is typically around 10-15 ns, but it can vary depending on the supply voltage, temperature, and operating conditions.
• How do I handle the enable inputs (1E, 2E, 3E, and 4E) when not in use?
  When not in use, the enable inputs (1E, 2E, 3E, and 4E) should be tied to a logic high (VCC) to ensure that the device is enabled and functioning correctly.