CD74HC157E datasheet by Texas Instruments

CD74HC157E Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HC157E?
  The maximum frequency of operation for the CD74HC157E is 25 MHz, but it can vary depending on the specific application and operating conditions.
• Can I use the CD74HC157E with a 5V power supply?
  Yes, the CD74HC157E can operate with a 5V power supply, but it's recommended to use a 3.3V or lower power supply to ensure compatibility with most modern digital systems.
• How do I handle the enable inputs (E1 and E2) when not in use?
  When not in use, the enable inputs (E1 and E2) should be tied to a logic high (VCC) to ensure that the device is enabled and functioning correctly.
• What is the propagation delay time for the CD74HC157E?
  The propagation delay time for the CD74HC157E is typically around 10-15 ns, but it can vary depending on the specific application and operating conditions.
• Can I use the CD74HC157E as a level shifter?
  Yes, the CD74HC157E can be used as a level shifter, but it's not recommended as it's primarily designed as a multiplexer. If level shifting is required, a dedicated level shifter IC should be used.