CD4043BDR datasheet by Texas Instruments

CD4043BDR Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the CD4043BDR?
  The recommended operating voltage range for the CD4043BDR is 4.5V to 15.5V.
• How do I ensure the CD4043BDR is properly powered on and off?
  To ensure proper power-on and power-off, the CD4043BDR requires a monotonic power supply ramp-up and ramp-down. A minimum of 1ms is recommended for power-on and power-off times.
• What is the maximum clock frequency that the CD4043BDR can handle?
  The CD4043BDR can handle clock frequencies up to 10MHz.
• How do I handle the output enable (OE) pin?
  The output enable (OE) pin should be tied to VCC or GND through a 1kΩ to 10kΩ resistor to ensure proper operation. Leaving the OE pin floating can cause unpredictable behavior.
• What is the purpose of the master reset (MR) pin?
  The master reset (MR) pin is used to asynchronously reset the CD4043BDR. It should be tied to VCC through a 1kΩ to 10kΩ resistor to ensure proper operation.