The toggling pattern is the same as in the T-flip flops up-counter. As the name suggests, it is a circuit which counts. D-flop flop can be set to toggle its state upon the clock edge if its complemented output is feedback to its input. As it is can be worked under ten different unique combinations of output so it is also known as Decade counter. Binary Ripple Counter using T Flip flops | Design and Explanation#BinaryRippleCounter #Tflipflop #Digital Electronics #LogicDesign #CountersThanks for watchi. The table also shows that the count goes momentarily count from nine (1001) to ten (1010) before resetting to zero(0000). Hence, it is used as a clock for counter indicates the frequency of the unknown signal in respect to this time period. There are many types of counter both binary and decimal. A binary counter is basically a state machine that just cycles through its states for each cycle of a clock signal. After that connect the reset pins with the ground. An asynchronous counter is also known as ripple counter. The output is a binary value whose value is equal to the number of pulses received at the CK input. Returning to the 4 stage counter Figure 3. Since we cannot clock the toggling of a bit based on the toggling of a previous bit in a synchronous counter circuit (to do so would create a ripple effect) we must find some other pattern in the counting sequence that can be used to trigger a bit toggle: Examining the four-bit binary count sequence, another predictive pattern can be seen. Note that the output of Q1 is applied to the C inputs of both Q2 is applied to the C input of Q4. [CDATA[// >