According to Wikipedia, 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 signal. For example, in UPcounter a counter increases count for every risingedge of clock..
Accordingly, what is counter and types of counter?
Generally, counters consist of a flip-floparrangement which can be synchronous counter or asynchronouscounter. In synchronous counter, only one clock i/pis given to all flip-flops, whereas in asynchronous counter,the o/p of the flip flop is the clock signal from the nearbyone.
Furthermore, where are counters used? They are counters. Counters areused not only for counting but also for measuring frequencyand time ; increment memory addresses . Counters arespecially designed synchronous sequential circuits, in which , thestate of the counter is equal to the count held in thecircuit by the flip flops.
In this manner, what is down counter?
Up-Down Counter. Counters are used in manydifferent applications. Some count up from zero and providea change in state of output upon reaching a predetermined value;others count down from a preset value to zero to provide anoutput state change. The counters are synchronous, but theyare asynchronously presettable.
What is application of counter?
counters are mainly used in countingapplications, where they either measure the time intervalbetween two unknown time instants or measure the frequency of agiven signal. With some changes in their design, counterscan be used as frequency divider circuits.
Related Question Answers
Why do we use counter?
Counters are used in digital electronics forcounting purpose, they can count specific event happening inthe circuit. For example, in UP counter a counterincreases count for every rising edge of clock.What is asynchronous counter?
A ripple counter is an asynchronouscounter where only the first flip-flop is clocked by anexternal clock. All subsequent flip-flops are clocked by the outputof the preceding flip-flop. Asynchronous counters are alsocalled ripple-counters because of the way the clockpulse ripples it way through the flip-flops.What is counter and register?
registers and counters. A counteris simply a register with combinational logic to implementcounting, that is it is possible to retrieve the contents, add orsubtract one to the contents, and then store it back into theregister in one operation.Which flip flop is used in counters?
A Counter is a device, which stores (andsometimes displays) the number of times a particular event hasoccurred, often in relationship to a CLOCK Signal. In electronics,counters can be implemented quite easily using memorydevices such as Flip-flops. J-KFlip-flop is one of the most commonly usedFlip-flops.What is BCD counter?
A BCD counter is a special type of a digitalcounter which can count to ten on the application of a clocksignal. We saw previously that toggle T-type flip flops can be usedas individual divide-by-two counters.What is difference between up and down counter?
The only difference is that for the upcounter the output is taken at the non-inverting output portsof the flip-flops. Whereas, for the down counter the outputis taken at the inverting output ports of theflip-flops.Which flip flop is used in asynchronous counter?
In the above image, a basic Asynchronous counterused as decade counter configuration using 4 JKFlip-Flops and one NAND gate 74LS10D. TheAsynchronous counter count upwards on each clock pulsestarting from 0000 (BCD = 0) to 1001 (BCD = 9).What is T Flip Flop how it works?
The T Flip-Flop The T or "toggle" flip-flopchanges its output on each clock edge, giving an output which ishalf the frequency of the signal to the T input. It can bemade from a J-K flip-flop by tying both of its inputshigh. 
