What is MOD N synchronous 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.
How do you design a MOD counter?
- Introduction :
- Design for Mod-N counter :
- Step 1 : Decision for number of flip-flops –
- Step 2 : Write excitation table of Flip flops –
- Step 3 : Draw state diagram and circuit excitation table –
- Circuit excitation table –
How many states are required for designing of asynchronous counter?
An Asynchronous counter can have 2n-1 possible counting states e.g. MOD-16 for a 4-bit counter, (0-15) making it ideal for use in Frequency Division applications.
What is synchronous counter design?
Synchronous counters are easier to design than asynchronous counters. They are called synchronous counters because the clock input of the flip-flops. are all clocked together at the same time with the same clock signal. Due to this common clock pulse all output states switch or change simultaneously.
What does N counter mean?
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 difference between synchronous and asynchronous counter?
1. In the synchronous counter there are continuous clock input signals with flip-flops used to produce the output. In Asynchronous counters there are different clock signals used to produce the output. 2.
What is a divide-by N counter what is a MOD n counter?
‘Divide by N ‘ is the appropriate name given when it is useful in dividing the frequency of a signal e.g. in ripple counters using divide by 10 counter or in some ADC circuits. ‘Mod -n’ is when you want to stress on the limit of the numbers generated.
What is the difference between MOD n counter and divided by n counter?
A modulo N counter does the same thing as above and is also used as an alternate definition which implies that the counter counts N states. Show activity on this post. A counter which is reset at the Nth clock pulse is called Mod N counter or Divide by N counter.
What is the difference between synchronous?
In Synchronous Transmission, data is sent in form of blocks or frames. This transmission is the full duplex type. Between sender and receiver the synchronization is compulsory….Asynchronous Transmission:
| S.NO | Synchronous Transmission | Asynchronous Transmission |
|---|---|---|
| 2. | Synchronous transmission is fast. | Asynchronous transmission is slow. |
What is difference between synchronous and asynchronous reset?
Resets are designed in synchronous (clocked) parts of the design. A reset is either asynchronous or synchronous. An asynchronous reset activates as soon as the reset signal is asserted. A synchronous reset activates on the active clock edge when the reset signal is asserted.
What is MOD of a counter?
The modulus of a counter is the number of states in its count sequence. The maximum possible modulus is determined by the number of flip-flops. For example, a four-bit counter can have a modulus of up to 16 (2^4). Counters are generally classified as either synchronous or asynchronous.
How to design a Mod-6 synchronous up counter?
Design a Mod-6 synchronous up Counter. Step 1: Find the number of flip flops. Mod-6 counter represents that the counter will have 6 states. Thus, N =6. The number of flip-flops used for counter design is determined using the formula, 2n ≥ N. By trial and error method, the value of n is found to be 3. That is the number of flip-flops, n = 3.
What is a synchronous counter?
The synchronous counter uses the same clock signal from the same source and at exactly the same time. Generally, it is constructed using either JK flip flop or T flip flop.
How to implement mod-n synchronous?
A Mod-n Synchronous can be implemented using appropriate number of J-K flip-flops connected together with their clocks triggered simultaneously. A synchronous counter which counts a truncated sequence of n unique states can be similarly implemented.
How to design a MOD-5 counter?
Thus, following the steps given in article – designing of synchronous counter, a mod-5 counter can be designed as: Step 1: The number of flip-flops required to design a mod-5 counter can be calculated using the formula: 2n >= N, where n is equal to no. of flip-flop and N is the mod number.