Find out how easy it is to wire a IC with just a hand full of components and obtain multiple frequency outputs. The oscillator is popularly used and this . CD is the versatile Binary counter IC that can be used in Timer applications. When a resistor is connected to its pin 10 and a capacitor in. Another versatile device, the IC has numerous applications and can be used for implementing various useful functions in an electronic.

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By increasing or decreasing the value of capacitor and resistor, we can change the time delay for the period of on and off. Each output goes high in the negative transition after the completion of one timing cycle. S1 connected to pin. Relay Switch Relay is an electromagnetic device which is kc to isolate two circuits electrically and connect them magnetically.

BC is an NPN bi-polar junction transistor. A loudspeaker or “speaker” is a transducer that converts electrical energy into acoustical energy.

This is done so that it instantly stops the IC from oscillating and resets it back to its original stage. The timer circuit is built around the CD which is 14 stage ripple carry binary counter, divider and an oscillator. It is important to connect pin 12 reset pin to ground for enabling the IC to oscillate and we have connected it to positive supply. Its resistance is given by the ratio of voltage applied across its terminals to the current passing through it. We also learnt about several interesting and easy circuits to build on your own such as RF detector.


Reset pin 12 resets the timing cycle once it is grounded. A transistor, stands for transfer of When an electric signal is applied to the input pin of speaker, cd406 generates sound waves.

IC 4060 Oscillator Explained

The basic cd4600 of the internal oscillator is determined by the value of the capacitor connected to its pin 9 and the resistor connected to pin The IC requires just a couple of resistors and a capacitor connected externally to start the oscillator. So that counter will start again. The free ends of these components are all joined together. This site uses cookies.

How to set CD IC as Timer – Mohan’s electronics blog

It is basically a 14 stage binary ripple counter and consists of an internal oscillator. How to Identify the Pin numbers?

We have been studying a lot about microprocessors and have taken a look at the architecture. Outputs can give almost full supply voltage to drive light loads but output current is around 10 mA. Choosing Motor For Robots. Reset pin 12 should be grounded.


Capacitors offer infinite reactance to zero frequency so they are used for blocking DC components or bypassing the AC signals.

The other pin is connected to ground. Countdown timer using microcontroller AT89C With a few components, it is easy to construct a simple but reliable time delay circuit. Its ten active high outputs can give time delay from few seconds to hours. Pin 9, 10, and 11 are reserved for the external frequency determining components. Here we have used a rotary switch to select the time required.

Timer Circuit using IC CD

Pin 11 is the Osc In Clock In to which pulses from an external oscillator such as Crystal oscillator can be given.

Its inbuilt oscillator is based on three inverters. Capacitor Capacitor is a passive component used to store charge.

Since each bistable divides its input signal by two, a total of fifteen signals are cd4600, each of half the frequency of the previous one.