# Shakuhachi.net

Best place for relax your brain

# What are the applications of ring counter?

## What are the applications of ring counter?

Applications of Ring counters

• Ring counters are used to count the data in a continuous loop.
• They are also used to detect the various numbers values or various patterns within a set of information, by connecting AND & OR logic gates to the ring counter circuits.

## What IC 7495 is?

IC 7495 is a shift register IC. It is also known as IC74LS95. It is a 4-bit device and having both serial and parallel synchronous operating modes.

Which IC is used to implement 4-bit ring counter?

The figure above shows the circuit diagram for a 4-bit ring counter with a single circulating 1. Here IC 7494 universal shift register is connected so that it normally performs a left shift. However when reset is asserted, it loads 0001. Once reset is negated the IC 7490 shifts left on every clock pulse.

What is the advantage of ring counter?

It is also known as switch-tail ring counter, walking ring counter or Johnson counter. It connects the complement of the output of the last shift register to the input of the first register and circulates a stream of ones followed by zeros around the ring. Here, we use Clock (CLK) for all the flip-flops.

### How does ring counter work?

A Ring counter is a synchronous counter. the synchronous counter has a common clock signal that triggers all the Flip-flops at the same time. Ring counter consists of D-flip flops connected in cascade setup with the output of last Flip-flop connected to the input of first Flip-flop. Each flip-flop constitutes a stage.

### What are the applications of flip flop?

Applications of Flip-Flops

• Counters.
• Frequency Dividers.
• Shift Registers.
• Storage Registers.
• Bounce elimination switch.
• Data storage.
• Data transfer.
• Latch.

How does a ring counter work?

A ring counter is a type of counter composed of flip-flops connected into a shift register, with the output of the last flip-flop fed to the input of the first, making a “circular” or “ring” structure.

What type of shift register is 7495?

The 74LS95 is a 4-Bit Shift Register with serial and parallel synchronous operating modes. The serial shift right and parallel load are activated by separate clock inputs which are selected by a mode control input.

#### Why Johnson counter is called modulo 2N counter?

It is designed with a group of flip-flops, where the inverted output from the last flip-flop is connected to the input of the first flip-flop. When compared to the ring counter, it uses only half of the number of flip-flops. So, the MOD will be 2n, if there are n flip-flops.

Where is Johnson counter used?

Johnson counter is used as a synchronous decade counter or divider circuit. It is used in hardware logic design to create complicated Finite states machine. ex: ASIC and FPGA design. The 3 stage Johnson counter is used as a 3 phase square wave generator which produces 1200 phase shift.

What is ICIC 7495?

IC 7495 is a 4-bit universal shift register. The logic symbol is shown in the figure below. It has 4 input and the corresponding outputs Q A, Q B, Q C, and Q D are taken to be low when rest is 0 irrespective of the other inputs.

## How many flip-flops are required to design a ring counter?

Ring counter is almost same as the shift counter. The only change is that the output of the last flip-flop is connected to the input of the first flip-flop in case of ring counter but in case of shift resister it is taken as output. Except this all the other things are same. So, for designing 4-bit Ring counter we need 4 flip-flop.

## How to design a 4-bit ring counter?

So, for designing 4-bit Ring counter we need 4 flip-flop. In this diagram, we can see that the clock pulse (CLK) is applied to all the flip-flop simultaneously. Therefore, it is a Synchronous Counter. Also, here we use Overriding input (ORI) to each flip-flop. Preset (PR) and Clear (CLR) are used as ORI. When PR is 0, then the output is 1.

What is synchronous counter?

The synchronous counter is a shift register counter which is further classified as a ring-type and twisted type ring counter. What is Ring Counter?