## What is mod in ripple counter?

The 3-bit ripple counter used in the circuit above has eight different states, each one of which represents a count value. Similarly, a counter having n flip-flops can have a maximum of 2 to the power n states. The number of states that a counter owns is known as its mod (modulo) number.

### How do you make a D flip-flop counter?

Design a circuit for an edge triggered 4-bit binary up counter (0000 to 1111). When it reaches “1111”, it should revert back to “0000” after the next edge. Use positive edge triggered D flip-flop (shown in the below figure) to design the circuit….Circuit Design of a 4-bit Binary Counter Using D Flip-flops.

Present State (Q) | Input (D) | Next State (Q+) |
---|---|---|

0 | 0 | 0 |

0 | 1 | 1 |

1 | 0 | 0 |

1 | 1 | 1 |

#### What is a mod 11 counter?

A synchronous counter is one which has the same clock input for all its flip flops. A MOD 11 synchronous counter counts from 0000 to 1010. Hence it will require four T flip flops. Synchronous counters are designed by using excitation table to determine the combinational logic of inputs to each flip flop.

**What is the use of mod 10 counter?**

Counting Sequence of Decade counter A decade counter is called as mod -10 or divide by 10 counter. It counts from 0 to 9 and again reset to 0. It counts in natural binary sequence. Here 4 T Flip flops are used.

**What is MOD 10 up counter?**

A decade counter is called as mod -10 or divide by 10 counter. It counts from 0 to 9 and again reset to 0. It counts in natural binary sequence. Here 4 T Flip flops are used. It resets after Q3 Q2 Q1 Q0 = 1001.

## Is MOD counter synchronous or asynchronous?

As synchronous counters are formed by connecting flip-flops together and any number of flip-flops can be connected or “cascaded” together to form a “divide-by-n” binary counter, the modulo’s or “MOD” number still applies as it does for asynchronous counters so a Decade counter or BCD counter with counts from 0 to 2n-1 …

### Why we use D flip-flop in counter?

A D-Type Flip-Flop Circuit can be used to store 1 bit of information. It has two input pins (Called D (Data) and E (Enabler) and two output pins (Q and Q = NOT Q). When the enabler input E is set to 0, the output Q cannot be changed. It remains as its previous value.

#### What is the mod of a ripple counter?

Asynchronous counters are also called ripple-counters because of the way the clock pulse ripples it way through the flip-flops. The MOD of the ripple counter or asynchronous counter is 2 n if n flip-flops are used.

**What is a n-bit ripple counter?**

A n-bit ripple counter can count up to 2 n states. It is also known as MOD n counter. It is known as ripple counter because of the way the clock pulse ripples its way through the flip-flops. Some of the features of ripple counter are:

**What is ripple up-counter?**

The name ripple counter is because the clock signal ripples its way from the first stage of Flip-flops to the last stage. There are two types of counters. Synchronous counters and Asynchronous Counters. The asynchronous counter has many types. Some of them are given below. Ripple up-counter starts counting from 0 and counts up to its maximum range.

## What is the range of a ripple counter?

Asynchronous counters are also called ripple-counters because of the way the clock pulse ripples it way through the flip-flops. The MOD of the ripple counter or asynchronous counter is 2 n if n flip-flops are used. For a 4-bit counter, the range of the count is 0000 to 1111 (2 4 -1).