If both the values of S and R are switched to 0, then the circuit remembers the value of S and R in their previous state. In both the states you can see that the outputs are just compliments of each other and that the value of Q follows the value of S. S-R Flip Flop using NOR Gateįrom the diagram it is evident that the flip flop has mainly four states. The diagram and truth table is shown below. The design of such a flip flop includes two inputs, called the SET and RESET. These flip flops are also called S-R Latch.
The SET-RESET flip flop is designed with the help of two NOR gates and also two NAND gates. There are mainly four types of flip flops that are used in electronic circuits. As a memory relies on the feedback concept, flip flops can be used to design it. The most commonly used application of flip flops is in the implementation of a feedback circuit. A higher application of flip flops is helpful in designing better electronic circuits. When a certain input value is given to them, they will be remembered and executed, if the logic gates are designed correctly. Flip flops can also be considered as the most basic idea of a Random Access Memory. With the help of Boolean logic you can create memory with them. Click on the links below for more information.įlip flops are actually an application of logic gates. This article deals with the basic flip flop circuits like S-R Flip Flop, J-K Flip Flop, D Flip Flop, and T Flip Flop along with truth tables and their corresponding circuit symbols.īefore going to the topic it is important that you get knowledge of its basics. In Multisim I cannot get the numbers to display correctly and in Crocodile Clips there is only one number that displays.In this article, let’s learn about different types of flip flops used in digital electronics. The full sequence doesn't show on all the 7-segment displays simultaneously like I need it to, instead it still shows the sequence as it counts from 2,1,0,6,5 up and down.
The main problem I'm facing is that I cannot get the sequence to display. I'm not sure what to do to fix this problem. On Crocodile Clips only the '1' in the sequence displays and Multisim shows all the numbers but very incorrectly. I used a 5-bit ring counter using D flip-flops with a BJT transistor and 10k Ohm resistors to do this but the sequence doesn't display correctly on either of the two programs. The problem comes when I need to display the entire sequence on the 7-segment displays. I used both Multisim and Crocodile Clips to simulate my design and it works fine. I started first by designing the Up/Down counter and simulating it.
I was given a project to design a Synchronous Up/Down counter which displays my sequence (2,1,0,6,5) on 5 x 7-segment displays simultaneously.
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