CD4027 datasheet of Dual J-K Flip-Flop

When we want to use flip-flops with CMOS. Often we meet CD4027. It is dual J-K flip-flops that are monolithic complementary MOS integrated circuits.

We have seen many circuits that use them. Of course, making a great circuit we should understand detail of any parts( basic enough).

Slow down!

If you are beginner. You should read how flip-flop works below.

CD4027 datasheet

So, in this post, we will learn about the CD4027 datasheet. See Its internal structure and pinout. It consists of N- and P-channel enhancement mode transistors.

And, It looks like CD4013. But they are different pins, be careful.

Each flip-flop has independent J, K, set, reset, and clock inputs and buffered Q and Q outputs.

Learn more:

CD4027 Pinout

We use MC14027 or CD4027 or TC4027 as CMOS-IC, inside JK-Flip-Flop and 16 pins. See pinout below.

Which each pin has a different function as shown below.

CD4027 pinout and symbol circuit

These flip-flops are edge sensitive to the clock input and change state on the positive-going transition of the clock pulses.

Pulse edges trigger


The connection diagram

Set or reset is independent of the clock and is accomplished by a high level of the respective input.

The diode clamps across VDD and VSS to protect against damage to All inputs, due to static discharge.

Features

  • Wide supply voltage range: 3.0V to 15V
  • High noise immunity: 0.45 V(typ.)
  • Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS
  • Low power: 50 nW (typ.)
  • Medium speed operation: 12 MHz (typ.) with 10V supply

Then See truth table

truth-table-of-cd4027

How to use CD4027 (example circuits)

Reading the datasheet makes us bored. And don’t see the usage picture clearly. Let’s see the example circuits diagram.

The experimentation of 2-bit binary counter

2 bit-binary counter using cd4027

Traffic light circuit

01-the schematic diagram of first circuit

Automatic Fan Controller circuit

automatic-fan-controller-for-heat-sink

Buy CD4027 on amazon

Here are a few related circuits you may find helpful, too:

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