CD4045BE datasheet by Texas Instruments

CD4045BE Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the CD4045BE?
  The recommended operating voltage range for the CD4045BE is 4.5V to 15V.
• How do I ensure the CD4045BE oscillator starts reliably?
  To ensure the oscillator starts reliably, a 1kΩ to 10kΩ resistor should be connected between the oscillator pins (pins 11 and 12) and a 10nF to 100nF capacitor should be connected between the oscillator pin (pin 11) and ground.
• What is the maximum frequency of operation for the CD4045BE?
  The maximum frequency of operation for the CD4045BE is approximately 1MHz.
• How do I synchronize the CD4045BE with an external clock signal?
  To synchronize the CD4045BE with an external clock signal, connect the external clock signal to the clock input pin (pin 1) and set the oscillator disable pin (pin 13) to a logic high level.
• What is the purpose of the VDD pin (pin 16) on the CD4045BE?
  The VDD pin (pin 16) is the power supply pin for the internal logic circuits and should be connected to a stable voltage source.