CD4027 Dual J-K Master Slave Flip-Flop IC

CD4027 Dual J-K Master-Slave Flip-Flop IC belongs to the CD4XXX IC series. The IC is constructed by using the monolithic complementary MOS (CMOS), integrated with p-type and n-type enhancement mode transistors. Each flip-flop comprises of independent J, K, set, reset, and clock inputs and buffered Q and Q outputs. These flip-flops comes as a edge sensitive to the clock input and change state on the positive-going transition of the clock pulses. Moreover, the Set or reset pin on the IC is independent of the clock and accomplished by a high level on the respective input. The output of the IC always comes in TTL. And is easily interfaced with other TTL, CMOS, and NMOS devices. The IC provides wide range of features such as high noise immunity and low thermal dissipation. And also all inputs are protected against damage because of  static discharge by diode clamps to VDD and VSS.

CD4027 designed as a single monolithic chip microcircuit comprised of two identical complementary-symmetry J-K master-slave flip-flops. Moreover, each flip-flop offers arrangements for individual J, K, Set Reset, and Clock input signals. And also the  Buffered Q and Q signals are provided as outputs.

The JK Flip Flop designed as a gated RS flip flop with the addition of the clock input circuitry. When both the inputs S and R are capable logic “1”, the invalid condition takes place. Inorder to prevent this invalid condition, a clock circuit is introduced. The JK Flip Flop consists of four possible input combinations because of the addition of the clocked input. The four inputs are “logic 1”, ‘logic 0”. “No change’ and “Toggle”.

Application

• Shift Registers
• Ripple Binary Counters