74HCT123DB,112 datasheet by NXP Semiconductors

74HCT123DB,112 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the 74HCT123DB,112?
  The recommended operating voltage range for the 74HCT123DB,112 is 4.5V to 5.5V, with a typical voltage of 5V.
• How do I handle the power-up and power-down sequences for the 74HCT123DB,112?
  It's recommended to power up the VCC pin before the input signals, and power down the VCC pin after the input signals. This ensures proper initialization and prevents unwanted output states.
• What is the maximum frequency of operation for the 74HCT123DB,112?
  The maximum frequency of operation for the 74HCT123DB,112 is typically around 30MHz, but this can vary depending on the specific application and operating conditions.
• How do I ensure proper termination for the 74HCT123DB,112 outputs?
  It's recommended to use a pull-up or pull-down resistor on the output pins to ensure proper termination and prevent oscillations. The value of the resistor depends on the specific application and load conditions.
• Can I use the 74HCT123DB,112 in a 3.3V system?
  While the 74HCT123DB,112 is specified for 5V operation, it can be used in a 3.3V system with some limitations. However, the output voltage levels may not be fully compatible with 3.3V logic, and the device may not meet the specified timing parameters.