SN54F521J datasheet by Texas Instruments

SN54F521J Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the SN54F521J?
  The maximum operating temperature range for the SN54F521J is -55°C to 125°C.
• Is the SN54F521J compatible with 3.3V logic?
  No, the SN54F521J is a 5V device and is not compatible with 3.3V logic. It requires a 4.5V to 5.5V power supply.
• What is the maximum clock frequency for the SN54F521J?
  The maximum clock frequency for the SN54F521J is 25 MHz.
• Does the SN54F521J have built-in pull-up resistors?
  No, the SN54F521J does not have built-in pull-up resistors. External pull-up resistors are required for the inputs.
• Is the SN54F521J radiation-hardened?
  No, the SN54F521J is not radiation-hardened. It is a commercial-grade device and is not designed for use in radiation-intensive environments.