What is synchronous decade counter?

What is synchronous decade counter?

What is a synchronous decade counter ? A logical counter able to increment a 4 bits word at each clock tick from 0 to 9 in a loop. The main component to make a counter is a J-K Flip Flop. Actually, one for each bit. Otherwise, the decimal greatest number of a decade counter is 9 that is encoded by 1001 in binary code.

What is 3-bit synchronous up counter?

The 3-bit Synchronous binary up counter contains three T flip-flops & one 2-input AND gate. All these flip-flops are negative edge triggered and the outputs of flip-flops change affect synchronously. The output of third T flip-flop toggles for every negative edge of clock signal if both Q0 & Q1 are 1.

How many states are there in a synchronous decade counter?

A decade counter counts ten different states and then reset to its initial states. A simple decade counter will count from 0 to 9 but we can also make the decade counters which can go through any ten states between 0 to 15(for 4 bit counter).

Where is decade counter used?

Decade counters are used in clock circuits, frequency dividers, state machines, and sequencers, just to name a few applications.

Why it is called T flip-flop?

In T flip flop, “T” defines the term “Toggle”. In SR Flip Flop, we provide only a single input called “Toggle” or “Trigger” input to avoid an intermediate state occurrence. The “T Flip Flop” has only one input, which is constructed by connecting the input of JK flip flop. This single input is called T.

How to design a 2 Bit synchronous down counter?

How to design a 2-bit synchronous down counter? 1 Step 1: Find the number of flip-flops and choose the type of flip-flop. Since this is a 2-bit synchronous counter, we… 2 Step 2: Proceed according to the flip-flop chosen. More

How many bits are in a decade counter circuit?

If we observe the decade counter circuit diagram, there are four stages in it, in which each stage has single flip flop in it. So it is capable of counting 16 bits or 16 potential states, in which only 10 are used. The count starts from 0000 (zero) to 1001 (9) and then the NAND gate will reset the circuit.

What is the Count sequence of a synchronous counter?

Above circuit is made using Synchronous binary counter, which produces count sequence from 0 to 9. Additional logics are implemented for desired state sequence and to convert this binary counter to decade counter (base 10 numbers, Decimal). When the output reaches count 9 or 1001, the counter will reset to 0000 and again counts up to 1001.

How is the Count of the decade counter decoded?

The count is decoded by the inputs of NAND gate X1 and X3. After count 10, the logic gate NAND will trigger its output from 1 to 0, and it resets all flip flops. The state diagram of Decade counter is given below. If we observe the decade counter circuit diagram, there are four stages in it, in which each stage has single flip flop in it.