SNJ54HC27J datasheet by Texas Instruments

SNJ54HC27J Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SNJ54HC27J?
  The maximum operating frequency of the SNJ54HC27J is 25 MHz, but it can operate up to 50 MHz with a reduced voltage supply.
• How do I handle the output enable (OE) pin in my design?
  The output enable (OE) pin is active-low, meaning it should be connected to GND to enable the outputs. If left unconnected, the OE pin will float high, disabling the outputs.
• What is the recommended power-on sequence for the SNJ54HC27J?
  To prevent latch-up and ensure proper operation, it is recommended to power up the VCC pin before applying any input signals, and to power down the VCC pin last.
• Can I use the SNJ54HC27J in a 5V system?
  Yes, the SNJ54HC27J is compatible with 5V systems, but it is recommended to use a voltage regulator to ensure a stable 4.5V to 5.5V supply voltage range.
• How do I handle the input pins when they are not in use?
  Unused input pins should be tied to either VCC or GND to prevent them from floating and causing unintended logic states.