What do you mean by a modulo n counter?
The number of different output states a counter can produce is called the modulo or modulus of the counter. The Modulus (or MOD-number) of a counter is the total number of unique states it passes through in one complete counting cycle with a mod-n counter being described also as a divide-by-n counter.
What is counter explain with example?
Counter is a digital device and the output of the counter includes a predefined state based on the clock pulse applications. The output of the counter can be used to count the number of pulses. Generally, counters consist of a flip-flop arrangement which can be synchronous counter or asynchronous counter.
What does N counter mean?
2. A Divide by N counter implies that it divides the input clock frequency by N ie; if you cascade four flip-flops then, the output of every stage is divided by 2, if you are taking the output from the 4th flip-flop, then its output frequency is clock frequency by 16 (2^4).
What is the modulo n for a digital clock?
Examples are a digital clock in the 24-hour system, which resets itself to 0 at midnight (N = 24), and a circular protractor marked in 360 degrees (N = 360). Under modular arithmetic (with mod N), the only numbers are 0, 1, 2, …, N − 1, and they are known as residues modulo N.
What are types of counters?
Types of Electronic Counters
- Synchronous counter.
- Asynchronous Counter or Ripple Counter.
- Up/Down Counter.
- Decade Counter.
- Ring counter.
- Cascaded counter.
- Johnson counter.
- Modulus counter.
What are counters in DLD?
In digital logic and computing, a counter is a device which stores (and sometimes displays) the number of times a particular event or process has occurred, often in relationship to a clock. The most common type is a sequential digital logic circuit with an input line called the clock and multiple output lines.
What is modulo n counter divide by N counter )?
The final output clock signal will have a frequency value equal to the input clock frequency divided by the MOD number of the counter. Such circuits are known as “divide-by-n” counters. Counters can be formed by connecting individual flip-flops together and are classified according to the way they are clocked.
What is Johnson decade counter?
Johnson counter is used as a synchronous decade counter or divider circuit. The 3 stage Johnson counter is used as a 3 phase square wave generator which produces 1200 phase shift. It is used to divide the frequency of the clock signal by varying their feedback.
What’s the maximum modulus of a modulo n counter?
NOTE ALSO THAT IT HAS TAKEN 4 CLOCK PULSES TO GET FROM 00 TO 11. • THE MAXIMUM NUMBER OF POSSIBLE OUTPUT STATES (MAXIMUM MODULUS) FOR THE COUNTER IS: 2N • THEREFORE, A “MOD-N” COUNTER WILL REQUIRE “N” NUMBER OF FLIP-FLOPS CONNECTED TOGETHER TO COUNT A SINGLE DATA BIT WHILE PROVIDING 2N DIFFERENT OUTPUT STATES
What does modulo n up mean on a clock?
Modulo N Up Counter. This is a counter that resets at a chosen number. For example a two digit decimal counter, left to its own devices will count from 00 to 99. This is not much use for a clock unless you have 100 second minutes. To fix the problem, the counter must go from 00 to 59.
How many flip flops are needed for a modulo n counter?
• THE MAXIMUM NUMBER OF POSSIBLE OUTPUT STATES (MAXIMUM MODULUS) FOR THE COUNTER IS: 2N • THEREFORE, A “MOD-N” COUNTER WILL REQUIRE “N” NUMBER OF FLIP-FLOPS CONNECTED TOGETHER TO COUNT A SINGLE DATA BIT WHILE PROVIDING 2N DIFFERENT OUTPUT STATES 6.
Which is the correct term for a mod n counter?
A mod n counter can also be termed as divide by n counter that divides the clock frequency by n. The divided frequency output is obtained from the MSB of the counter. The counter may be synchronous or asynchronous.