To get the advantage of the asynchronous inputs in the flipflop, Asynchronous Truncated counter can be used with combinational logic. So, if a counter with the specific number of resolutions ( n-bit Resolution) count up to is called as full sequence counter and on the other hand, if it is count less than the maximum number, is called as a truncated counter. The configuration made in such a way that the counter will reset itself to zero at a pre-configured value and has truncated sequences. Modulo or MOD counters are one of those types of counters. An Asynchronous counter can count 2 n - 1 possible counting states.Īsynchronous Truncated Counter and Decade CounterĪs there is a maximum output number for Asynchronous counters like MOD-16 with a resolution of 4-bit, there are also possibilities to use a basic Asynchronous counter in a configuration that the counting state will be less than their maximum output number. Due to the ripple clock pulse, it’s often called a ripple counter. Those Flip-flops are serially connected together, and the clock pulse ripples through the counter. As the count depends on the clock signal, in case of an Asynchronous counter, changing state bits are provided as the clock signal to the subsequent flip-flops. Counters can be easily made using flip-flops. An Asynchronous counter can count using Asynchronous clock input. Now we understood that what is counter and what is the meaning of the word Asynchronous. In computing or telecommunication stream, Asynchronous stands for controlling the operation timing by sending a pulse only when the previous operation is completed rather than sending it in regular intervals. Something that is not existing or occurring at the same time. Each clock pulse either increase the number or decrease the number.Īsynchronous stands for the absence of synchronization. The outputs represent binary or binary coded decimal numbers. Most common type of counter is sequential digital logic circuit with a single clock input and multiple outputs. In a digital logic system or computers, this counter can count and store the number of time any particular event or process have occurred, depending on a clock signal. A counter is a device which can count any particular event on the basis of how many times the particular event(s) is occurred.
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