How many flip-flops are required for a MOD 13 counter?

How many flip-flops are required for a MOD 13 counter?

Four JK Flipflops are needed to make mod —13 counter because when represented in binary form 13 will require four bits which can be individually represented by each flipflop and since it is mod 13 counter we can use appropriate reset circuit by using the inverted output of bit after lsb .

Can synchronous counters count down?

4-bit Synchronous Counter Waveform Timing Diagram Here the counter starts with all of its outputs HIGH ( 1111 ) and it counts down on the application of each clock pulse to zero, ( 0000 ) before repeating again.

What is MOD in MOD counter?

The number of states or counting sequences through which a particular counter advances before returning once again back to its original first state is called the modulus (MOD). In other words, the modulus (or just modulo) is the number of states the counter counts and is the dividing number of the counter.

What is up-down synchronous counter?

Both Synchronous and Asynchronous counters are capable of counting “Up” or counting “Down”, but their is another more “Universal” type of counter that can count in both directions either Up or Down depending on the state of their input control pin and these are known as Bidirectional Counters.

How do down counter count?

Explanation: In DOWN-counter, each flip-flop is triggered by the inverted output of the preceding flip-flop. DOWN-counter counts from a maximum value to 0. Explanation: Binary counter that counts incrementally and decrement is called UP-DOWN counter/multimode counter.

How many flip-flops are needed for Mod 12?

Explanation: A ring counter requires ‘n’ flipflops for ‘n’ number of states. A modulus-12 counter has 12 states starting from 0000 to 1011, atleast 12 bits are required to design a modulus-12 counter.

What is up-down counter?

Bidirectional counters, also known as Up/Down counters, are capable of counting in either direction through any given count sequence and they can be reversed at any point within their count sequence by using an additional control input as shown below.

What is 3 bit synchronous up-down counter?

The 3-bit Asynchronous binary up counter contains three T flip-flops and the T-input of all the flip-flops are connected to ‘1’. All these flip-flops are negative edge triggered but the outputs change asynchronously. The clock signal is directly applied to the first T flip-flop.

What is down counter?

A down-counter counts stuff in the decreasing order. An up-down counter is a combination of an up-counter and a down-counter. It can count in both directions, increasing as well as decreasing. Depending on the type of clock inputs, counters are of two types: asynchronous counters and synchronous counters.

What is the use of down counter?

The UP/DOWN counter can be used as a self-reversing counter. It is also used as clock divider circuit. The parallel load feature can be used to preset the counter for some initial count.