CD4027 DATASHEET PDF

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. They are the Clock Enable pin 13 and Reset pin 15 pins.

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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. They are the Clock Enable pin 13 and Reset pin 15 pins. Similarly, if the reset pin is made high.

The count will reset itself back to Q0 and will stay there until Q0 is made low again. We have another pin called the carry out pin 12th pin , this pin will stay low 0V by default. But when the IC completes counting up to 10, the pin will go high and will remain high till it counts till 5, when its 5 it will go down 0V and turn on again when it reaches The timing diagram of the IC indicating the state of Output pins and Carry pin for every high pulse signal is shown below.

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CD4027 Dual JK Flip Flops IC

Meaning it has two JK flip flops inside it and each can be used individually based on our application. The term JK flip flop comes after its inventor Jack Kilby. The JK flip flops are considered to be the most efficient flip-flop and can be used for certain applications on its own. The flip-flops are also called as latching devices meaning it can remember one single bit of data and latch the output based on it, due to this property they are commonly used as shift registers, control registers, storage registers or where ever a small memory is required. The JK flip flop is considered to be more suitable for practical application because of its truth table that is the output of the flip flop will be stable for all types of inputs.

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