CD4028BF3A datasheet by Texas Instruments

CD4028BF3A Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the CD4028BF3A?
  The recommended operating voltage range for the CD4028BF3A is 3V to 18V, with a typical operating voltage of 5V.
• How do I ensure proper power sequencing when using the CD4028BF3A?
  To ensure proper power sequencing, the VCC pin should be powered up before the input signals, and the input signals should be stable before the clock signal is applied.
• What is the maximum clock frequency that the CD4028BF3A can handle?
  The maximum clock frequency that the CD4028BF3A can handle is 10 MHz, but this can vary depending on the operating voltage and load capacitance.
• How do I handle the asynchronous reset input (R) on the CD4028BF3A?
  The asynchronous reset input (R) should be tied to VCC through a pull-up resistor or connected to a logic high signal to ensure proper operation. A logic low signal on the R input will reset the counter.
• Can I use the CD4028BF3A as a synchronous counter?
  No, the CD4028BF3A is an asynchronous counter, meaning that the output of each stage is used as the clock input for the next stage. It is not suitable for use as a synchronous counter.