SN74HC157DR datasheet by Texas Instruments

SN74HC157DR Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the SN74HC157DR?
  The maximum frequency of operation for the SN74HC157DR is 100 MHz.
• Can I use the SN74HC157DR in a 5V system?
  Yes, the SN74HC157DR is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 5V supply.
• 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 proper operation.
• What is the propagation delay time for the SN74HC157DR?
  The propagation delay time for the SN74HC157DR is approximately 10 ns (typical) at 25°C and 4.5V supply voltage.
• Can I use the SN74HC157DR in a 3.3V system?
  Yes, the SN74HC157DR is compatible with 3.3V systems, but the output voltage will be limited to 3.3V.