What are up and down counters?

What are up and down counters?

An up-down counter is a combination of an up-counter and a down-counter. It can count in both directions, increasing as well as decreasing. Depending on the type of clock inputs, counters are of two types: asynchronous counters and synchronous counters.

How many FFs are required for 4-bit up-down counter?

In a 4-bit up-down counter, there are 4 J-K flip-flops required. For modulus-10 counter, N = 10. Therefore, 23 < = 10 < = 24. Thus, n = 4, and therefore, we require 4 FFs.

Which IC is used in up-down counter?

74LS193 IC – Binary Up/Down Counter with Clear IC (74193 IC) buy online at Low Price in India – ElectronicsComp.com. The 74LS193 is an UP/DOWN DIP-16 Binary Counter. Separate Count Up and Count Down Clocks are used and in either counting mode the circuits operate synchronously.

How does a up-down counter work?

Counters are used in many different applications. Some count up from zero and provide a change in state of output upon reaching a predetermined value; others count down from a preset value to zero to provide an output state change.

What is 4-bit binary up down counter?

A 4-bit binary up/down counter counts sequence from 0000 to 1111 and 1111 to 0000. When the external input UP is equal to 1, no matter what the DOWN input is, the circuit operates as an UP counter and counts sequence from 0000 to 1111.

What is a ripple counter?

Ripple counter is a special type of Asynchronous counter in which the clock pulse ripples through the circuit. The n-MOD ripple counter can count 2n states, and then the counter resets to its initial value. Features of the Ripple Counter: Different types of flip flops with different clock pulse are used.

What is the use of up-down counter?

The UP/DOWN counter can be used as a self-reversing counter. It is also used as clock divider circuit. The parallel load feature can be used to preset the counter for some initial count.