How to Use CD4060: Examples, Pinouts, and Specs

The CD4060, manufactured by Motorola, is a 14-stage ripple carry binary counter and oscillator. This versatile component integrates a built-in oscillator circuit and can count up to (2^{14}), making it ideal for timing, frequency division, and clock pulse generation. Its ability to operate over a wide voltage range and its low power consumption make it a popular choice in both hobbyist and professional electronic projects.

• Frequency division and clock generation
• Timers and delay circuits
• Pulse generation for digital circuits
• Oscillator circuits for microcontroller-based systems
• LED blinking and other periodic signal generation tasks

The following table outlines the key technical details of the CD4060:

The CD4060 is a 16-pin IC with the following pinout:

1. Power Supply: Connect pin 16 (V(_{DD})) to the positive supply voltage (3V to 15V) and pin 8 (GND) to ground.
2. Oscillator Configuration:
   • Use pins 9 (OSC IN), 10 (OSC OUT), and 11 (OSC INHIBIT) to configure the internal oscillator.
   • Connect an external resistor and capacitor to set the desired oscillation frequency. For example:
     • Resistor (R): 10 kΩ to 1 MΩ
     • Capacitor (C): 10 pF to 1 µF
   • The oscillation frequency can be approximated using the formula: [ f = \frac{1}{2.2 \cdot R \cdot C} ]
3. Counter Outputs: Use the Q4 to Q14 pins to access the binary counter outputs. Each output represents a divided frequency of the oscillator signal.
4. Reset Function: To reset the counter, momentarily pull the RESET pin (pin 12) HIGH.
5. Oscillator Inhibit: Pull the OSC INHIBIT pin (pin 13) HIGH to disable the oscillator.

The CD4060 can be used with an Arduino UNO to generate a clock signal or divide frequencies. Below is an example of how to use the CD4060 to blink an LED at a divided frequency:

• Connect V(_{DD}) (pin 16) to the Arduino's 5V pin.
• Connect GND (pin 8) to the Arduino's GND.
• Connect a 100 kΩ resistor between OSC IN (pin 15) and OSC OUT (pin 14).
• Connect a 10 nF capacitor between OSC IN (pin 15) and GND.
• Connect Q4 (pin 1) to an LED with a current-limiting resistor.

// This code demonstrates how to monitor the CD4060's output using an Arduino.
// The LED connected to Q4 will blink at a frequency determined by the RC network.

void setup() {
  pinMode(2, INPUT); // Connect Q4 (pin 1 of CD4060) to Arduino pin 2
  pinMode(13, OUTPUT); // Built-in LED for debugging
}

void loop() {
  int state = digitalRead(2); // Read the state of Q4
  digitalWrite(13, state); // Reflect the state on the built-in LED
}

• Ensure the resistor and capacitor values are chosen to achieve the desired oscillation frequency.
• Avoid exceeding the maximum supply voltage (15V) to prevent damage to the IC.
• Use decoupling capacitors (e.g., 0.1 µF) near the power supply pins to reduce noise.

1. No Oscillation:

   • Cause: Incorrect resistor or capacitor values.
   • Solution: Verify the RC network and ensure the values are within the recommended range.

2. Counter Not Resetting:

   • Cause: RESET pin not properly connected or pulled HIGH.
   • Solution: Check the RESET pin connection and ensure it is momentarily pulled HIGH to reset the counter.

3. Outputs Not Changing:

   • Cause: Oscillator not functioning or OSC INHIBIT pin is HIGH.
   • Solution: Verify the oscillator circuit and ensure the OSC INHIBIT pin is LOW.

Q1: Can I use a crystal oscillator with the CD4060?
Yes, the CD4060 supports crystal oscillators. Connect the crystal between OSC IN (pin 15) and OSC OUT (pin 14), and add appropriate capacitors to ground.

Q2: What is the maximum frequency the CD4060 can handle?
The maximum clock frequency is approximately 2 MHz when powered at 10V.

Q3: Can I cascade multiple CD4060 ICs?
Yes, you can cascade multiple CD4060 ICs by connecting the output of one IC to the clock input of another for extended counting capabilities.

This concludes the documentation for the CD4060.