What is binary up down counter?
Bidirectional counters, also known as Up/Down counters, are capable of counting in either direction through any given count sequence and they can be reversed at any point within their count sequence by using an additional control input as shown below.
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.
How do you change an up counter to a down counter?
To convert the up counter in Fig. 5.6. 1 to count DOWN instead, is simply a matter of modifying the connections between the flip-flops. By taking both the output lines and the CK pulse for the next flip-flop in sequence from the Q output as shown in Fig.
What do you mean by Up_down counter?
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 is Asynchronous binary up counter used for down counting?
If the DOWN input and up inputs are 1 and 0 respectively, then the NAND gates between first flip flop to third flip flop will pass the inverted output of FF 0 to the clock input of FF 1. Similarly, Q output of FF 1 will pass to the clock input of FF 2. Thus the UP /down counter performs down counting.
How many flip flops are needed for Mod 16?
Number no. of flip – flops are required to construct a mod-16 counter, must satisfy: 2n ≥ 16 i.e. With hundreds of Questions based on Sequential Circuits, we help you gain expertise on Digital Electronics.
What is difference between up and down counter?
An up-counter counts events in increasing order. A down-counter counts stuff in the decreasing order. 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.
What is binary counter example?
A binary counter is a hardware circuit that is made out of a series of flip-flops. The output of one flip-flop is sent to the input of the next flip-flop in the series. A binary counter can be either asynchronous or synchronous, depending on how the flip-flops are connected together.