SN7400DR datasheet by Texas Instruments

SN7400DR Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the SN7400DR?
  The recommended operating voltage range for the SN7400DR is 4.75V to 5.25V, although it can operate from 3.5V to 5.5V with reduced performance.
• How do I handle the input pins when they are not in use?
  When the input pins are not in use, they should be tied to a valid logic level (either VCC or GND) to prevent them from floating and causing unwanted behavior.
• What is the maximum frequency of operation for the SN7400DR?
  The maximum frequency of operation for the SN7400DR is typically around 100 MHz, although this can vary depending on the specific application and operating conditions.
• Can I use the SN7400DR in a 3.3V system?
  Yes, the SN7400DR can be used in a 3.3V system, but the output voltage levels may not be compatible with 3.3V logic. A level translator or voltage regulator may be required to ensure proper operation.
• How do I ensure reliable operation over the full temperature range?
  To ensure reliable operation over the full temperature range (-40°C to 125°C), it is recommended to follow proper PCB design and layout guidelines, use a suitable thermal management strategy, and ensure that the device is operated within its recommended operating conditions.