CD4060BE DATASHEET PDF

Pin 7 generates the highest value of frequency, while pin 3 produces the least. As you may notice the frequency goes on becoming half in proportion, and this happens with the pinout order of 7,5,4,6,14,13,15,1,2,3, wherein pin 7 produces the highest frequency, while pin 3 the minimum. The variable resistor is used to vary the frequency to any desired level, the capacitor value may also be altered for changing the frequency of the IC. Pin 12 is the reset input and should always be grounded or connected to the negative supply. A positive supply pulse to this input will reset the oscillations or revert the IC so that it begins counting or oscillating from the beginning. Pin 16 is the positive of the IC and pin 8 is the negative supply input of the IC.

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Pin 7 generates the highest value of frequency, while pin 3 produces the least. As you may notice the frequency goes on becoming half in proportion, and this happens with the pinout order of 7,5,4,6,14,13,15,1,2,3, wherein pin 7 produces the highest frequency, while pin 3 the minimum. The variable resistor is used to vary the frequency to any desired level, the capacitor value may also be altered for changing the frequency of the IC.

Pin 12 is the reset input and should always be grounded or connected to the negative supply. A positive supply pulse to this input will reset the oscillations or revert the IC so that it begins counting or oscillating from the beginning. Pin 16 is the positive of the IC and pin 8 is the negative supply input of the IC. If an auto reset facility is not included, the IC could exhibit a random or a haphazard initialization of its counting process, which may not be from the zero or start, rather from any intermediate level.

Therefore to ensure an automatic resetting for the IC, we must include an RC network with the reset pinout ofthe IC as explained below: Instead of connecting the pin 12 directly to ground line, connect it through a high value resistor such as a K. Then attach a small value capacitor from positive to pin 12, the value could be anywhere from 0. Enabling a Manual Reset Action To achieve a manual resetting facility in any IC circuit, you can simply replace the capacitor with a push button, as shown above.

Pressing this button anytime during the counting process of the IC, will quickly reset the IC to zero, so that the counting can start afresh from zero. The Rt and Ct are the main timing components which are actually responsible for determining the various delay intervals or frequencies across the IC outputs. R2 is positioned to reduce the frequency effect of the forward voltage over the input protection diodes.

C2 depicts the stray capacitance and is supposed to be minimal for enabling greater accuracy of the output time intervals. For this, Ct must be relatively larger than C2, the larger the better. Using IC with Crystal Oscillator Although the IC itself is fairly accurate with its frequency of oscillation and delay periods, this can be further enhanced using an externally crystal device with the IC. A crystal based oscillator will enable locking of the frequency to the predetermined value, and prevent any form drifting from the intended value.

The following diagram shows how to connect a crystal device with the IC for achieving a constant and accurate frequency output: As we can see in the above figure, only the pin11 and pin10 are used for the integrating the crystal with the IC.

R2 is used for initiating the crystal oscillations by supplying the required voltage pulses to the crystal. C3 and C2 enable the crystal to reach its rated resonance frequency. C3 can be tweaked to change this resonance value of the crystal slightly, and therefore the output frequency of the IC accordingly.

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Texas Instruments CD4060BE

Where to use CD IC The IC CD is used for counting applications, it has the capability to turn on 10 outputs sequentially in a pre-defined time and reset the count or hold it when required. It also has the capability to indicate the status of counting using Carry pin. We have 10 output pins ranging from Q0 to Q9, these pins can be connected to any load but we are using LEDs here as shown in the circuit below. This IC will increment the count from 0 to 9 Q0 to Q9 each time it senses a high pulse from the clock pin pin The output changes sequentially from Q0 to Q9 for every high pulse from the Clock pin, but this sequence can be interrupted by two pins.

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