CD54HC30F datasheet by Texas Instruments

CD54HC30F Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD54HC30F?
  The maximum frequency of operation for the CD54HC30F is 30 MHz, but it can be affected by factors such as supply voltage, temperature, and load capacitance.
• How do I ensure that the CD54HC30F is properly powered?
  To ensure proper power supply, connect VCC to a stable 2-V to 6-V power source, and GND to a solid ground plane. Decouple the power supply with a 0.1-μF ceramic capacitor and a 10-μF electrolytic capacitor.
• What is the input voltage threshold for the CD54HC30F?
  The input voltage threshold for the CD54HC30F is typically around 1.5 V, but it can vary depending on the supply voltage and temperature. For reliable operation, it's recommended to use a voltage threshold of 1.2 V to 1.8 V.
• Can I use the CD54HC30F in a 3.3-V system?
  Yes, the CD54HC30F can operate in a 3.3-V system, but the output voltage swing will be reduced. The output high voltage will be around 3.0 V, and the output low voltage will be around 0.3 V.
• How do I handle the output enable (OE) pin?
  The output enable (OE) pin is active-low, meaning that the output is enabled when OE is low (connected to GND) and disabled when OE is high (connected to VCC). When OE is high, the output is in a high-impedance state.