CD74HC259E datasheet by Texas Instruments

CD74HC259E Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HC259E?
  The CD74HC259E can operate at frequencies up to 40 MHz.
• How do I ensure that the CD74HC259E is properly powered?
  The CD74HC259E requires a single power supply voltage (VCC) of 2.0 to 6.0 volts, and it is recommended to decouple the power supply with a 0.1 μF capacitor.
• What is the propagation delay time for the CD74HC259E?
  The propagation delay time for the CD74HC259E is typically around 10 ns, but it can vary depending on the operating frequency and voltage.
• Can I use the CD74HC259E in a 3.3V system?
  Yes, the CD74HC259E can operate at 3.3V, but the output voltage levels may not be compatible with 3.3V systems. It's recommended to use a level translator or a voltage regulator to ensure compatibility.
• How do I handle the enable inputs (E1 and E2) for the CD74HC259E?
  The enable inputs (E1 and E2) are active-low, meaning that they must be pulled low to enable the device. It's recommended to tie the enable inputs to VCC or GND through a resistor to ensure proper operation.