CD74HC4024MT datasheet by Texas Instruments

CD74HC4024MT Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the CD74HC4024MT?
  The maximum clock frequency for the CD74HC4024MT is 25 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the timing diagrams and switching characteristics in the datasheet to ensure the desired clock frequency meets the device's requirements.
• How do I handle the output enable (OE) pin to ensure proper operation?
  The output enable (OE) pin should be tied low (VSS) to enable the outputs. If OE is tied high (VCC), the outputs will be in a high-impedance state. It's recommended to use a pull-down resistor to ensure the OE pin is properly biased.
• What is the recommended power-on reset (POR) circuit for the CD74HC4024MT?
  A simple POR circuit can be implemented using a resistor, capacitor, and diode. The capacitor should be connected between VCC and VSS, with the resistor in series with the capacitor. The diode should be connected between VCC and the reset pin (MR) to ensure a clean reset signal. The values of the components will depend on the specific application and operating conditions.
• How do I ensure proper signal integrity and reduce noise on the clock and data lines?
  To ensure proper signal integrity and reduce noise, it's recommended to use a low-impedance clock source, keep the clock and data lines as short as possible, and use a termination resistor at the receiving end. Additionally, consider using a clock buffer or signal repeater to improve signal quality and reduce jitter.
• What is the maximum input voltage that can be applied to the CD74HC4024MT?
  The maximum input voltage for the CD74HC4024MT is 6.5V, which is the absolute maximum rating. However, the recommended operating voltage range is 2V to 6V. Applying voltages above 6.5V can cause permanent damage to the device.