CD74HC4020E datasheet by Texas Instruments

CD74HC4020E Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the CD74HC4020E can handle?
  The CD74HC4020E can handle clock frequencies up to 25 MHz.
• How do I ensure that the CD74HC4020E is properly powered?
  The CD74HC4020E requires a single 2-V to 6-V power supply, and it's recommended to use a decoupling capacitor of 0.1 μF to 1 μF between VCC and GND to ensure proper power supply decoupling.
• What is the maximum input voltage that the CD74HC4020E can tolerate?
  The CD74HC4020E can tolerate input voltages up to 6.5 V, but it's recommended to keep input voltages within the recommended operating conditions of 2 V to 6 V to ensure proper operation.
• How do I handle the asynchronous reset input (MR) of the CD74HC4020E?
  The asynchronous reset input (MR) should be tied to VCC through a pull-up resistor (e.g., 1 kΩ) to ensure that the counter is properly reset when the input is high. When the input is low, the counter will reset.
• What is the propagation delay of the CD74HC4020E?
  The propagation delay of the CD74HC4020E is typically around 15 ns, but it can vary depending on the operating conditions and the specific application.