CD4060 14-stage Binary Counter to design timing delay circuits ( Proteus Simulation)
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In this video, we will see how to use C D 4 0 6 0 binary counter IC.
First lets get started with the introduction of C D 4 0 6 0.
C D 4 0 6 0 IC is a 14-stage counter. C D 4 0 6 0 consists of a 14-stage ripple carry binary counter, along with an internal oscillator. That mean, we can configure, this internal crystal oscillator, by connecting resistor and capacitor, with pin number 9, and 10. Later, in this video, we will see how to set frequency, using different resistor, and capacitor values. Furthermore, C D 4 0 6 0 operates over a power supply range of, 3 volts to 15 volts.
Now first let’s see some application of this IC.
It can be used in applications that require discrete, and accurate variable time delays. On top of that, it can also be used for acquiring, accurate oscillations of frequencies. In short, if you want to design a simple, but reliable time delay circuit with a few components, then you can use this IC.
Now lets see the details of all pins of C D 4 0 6 0. This 14 stage binary counter IC consists of 16 pins.
10 output pins, that is Q 3 to Q 13 are output pins. As it is a binary counter, therefore on every clock pulse, the counter value gets incremented by 1 in binary, and binary output appear on Q 3 to Q 13 pins.
Actually, It has 12 output pins, ranging from Q 1 to Q 14, but pins Q 2 and Q 3 are not available externally. Because it is a 14 bit binary counter, therefore, When an Input clock pulse is given to the pin, for each pulse the binary value gets incremented from fourteen times zero to fourteen times one, which is equivalent for 0 to 16383 in decimal.
The rate at which binary counter value gets incremented depends on oscillator frequency. Because higher the frequency, the higher will be the rate of input clock pulses.
As we mentioned earlier C D 4 0 6 0 has internal oscillator, and we can set the frequency according to our require by using R C circuit with pin 9 and 10 of C D 4 0 6 0. Pins that we use to connect the oscillator circuit are Pin 9-10.
This simple diagram shows the connection with RC components.
Now lets move forward and see how to set frequency .
This formula is used to set the clock frequency.
is given is F= 1 / (2.5*R1*C1).
In this formula, F is output frequency in hertz, R and C is resistor, and capacitor respectively.
In this circuit, we have selected, 1 mega ohm resistor and 0.22 microfarad capacitor. Now lets put these values into formula, therefore the resulting frequency, with these capacitor and resistor values will be 1.8 hertz.
F = 1 / (2.5*1000000*0.00000022)
Fosc = 1.8Hz
That means binary counter value gets incremented after every 0.556 second. Because time is inverse of frequency.
Similarly by varying the values of R1 and C1 ,we can obtain clock pulses of different frequency.
Now lets see the output of this circuit by connecting logic state at the output pins. Connect logic state to all output pin.
To start the simulation, click on simulation play button, also make the reset pin active low.
As you can see binary output appear on these pins.
Moreover, we can also calculate after how much time a specific pin, we become active, and it will be useful for creating delay for timer applications.
Once we get the clock pulse frequency, we can calculate the output time of each pin using the this formulae.
T = 2^n/Fosc
Where Fosc is the frequency of the oscillator, that we just calculated, and n is the output number. For example, if we want to find the time, during which the output Q5 will be high, then the value of n will be 5.
Now put these values to find time. Hence, the output Q 5 will go high after 17.7 seconds from resetting the Counter IC.
T = 25/1.8 = 32/1.8 = 17.7
T = 17.7 seconds
You can also check the output of any pin using oscilloscope, now connect an oscilloscope to any pin, observe the output, as you can see, the pin output goes high after some time, and goes low after some time.
Now just change the resistor, see the effect on output change rate.
This is how we can use C D 4 0 6 0 binary counter IC.
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Bye, see you next time with more technical stuff.
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