IC CD4027 PDF

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. So if you are looking for a IC for latching purpose or to act as a small programmable memory for you project then this IC might be the right choice for you.

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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. So if you are looking for a IC for latching purpose or to act as a small programmable memory for you project then this IC might be the right choice for you. The below circuit shows a typical sample connection for the JK flip-flop. Note that the input pins are pulled down to ground through a 1k resistor or less, this way we can avoid the pin in floating condition.

That is the pin will held to ground when the button is not pressed and when the button is pressed the pin will be held to supply voltage. The reset button should be pulled up through a 1K resistor and when grounded will reset the flip-flop. The clock signal for the JK flip-flop is responsible for changing the state of the output. The flip-flop will change its output only during the rising edge of the clock signal. The clock signal here is just a push button but can be type of pulse like a PWM signal.

The output state of the flip flops can be determined form the truth table below. Normally during regular operation of the IC the reset pin will be set high and the clock pulse of known frequency will be supplied to the clock pin, then the value o J and K will be varied based on the input signals and the respective output will be obtained on the Q and Q bar pins.

This region of operation in highlighted in red colour on the Truth table above.

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JK Flip Flop using CD4027

IC is used to alter the signal by providing control input from one or more input and get output at one or more output terminal. The value of output not merely depends on the present input state but also on what is the present state also depend on the earlier state. The diagram shown below the IC pin configuration. Org Logic level present at the input terminal J and K along with internal control is used to control the stage of flip flop. At every positive going cycle change occur in the state. Set and reset pin in this is not dependent on clock pulse and when a high signal is given at any of the input terminals sets and reset pin initiated.

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