Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > The S-R latch is an example of:a)Combinationa... Start Learning for Free
The S-R latch is an example of:
- a)Combinational circuit
- b)Synchronous sequential circuit
- c)One-bit memory element
- d)One-clock delay element
Correct answer is option 'C'. Can you explain this answer?
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The S-R latch is an example of:a)Combinational circuitb)Synchronous se...
One-Bit Memory Element - S-R Latch
The S-R latch is a sequential logic circuit that is used as a one-bit memory element. It has two inputs, Set (S) and Reset (R), and two outputs, Q and Q'. The output Q represents the stored value of the latch, and Q' represents the complement of Q.
How it works
When the S input is high and R input is low, the Q output goes high, and Q' output goes low. This state is called SET. Conversely, when the R input is high and the S input is low, the Q output goes low, and Q' output goes high. This state is called RESET.
When both S and R inputs are low, the output state of the latch remains unchanged from its previous state, making it a memory element.
Applications
The S-R latch is used in various applications such as:
1. As a memory element in flip-flops and registers.
2. As a building block in more complex sequential circuits.
3. As a basic element in control circuits for digital systems.
Conclusion
In conclusion, the S-R latch is an example of a one-bit memory element. It is a simple and widely used digital circuit element that stores one binary bit of information.
The S-R latch is a sequential logic circuit that is used as a one-bit memory element. It has two inputs, Set (S) and Reset (R), and two outputs, Q and Q'. The output Q represents the stored value of the latch, and Q' represents the complement of Q.
How it works
When the S input is high and R input is low, the Q output goes high, and Q' output goes low. This state is called SET. Conversely, when the R input is high and the S input is low, the Q output goes low, and Q' output goes high. This state is called RESET.
When both S and R inputs are low, the output state of the latch remains unchanged from its previous state, making it a memory element.
Applications
The S-R latch is used in various applications such as:
1. As a memory element in flip-flops and registers.
2. As a building block in more complex sequential circuits.
3. As a basic element in control circuits for digital systems.
Conclusion
In conclusion, the S-R latch is an example of a one-bit memory element. It is a simple and widely used digital circuit element that stores one binary bit of information.
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The S-R latch is an example of:a)Combinational circuitb)Synchronous se...
Latches and Flip-Flop:
- Latches and flip-flops are the basic elements to store 1-bit of data. Hence they are also known as a one-bit memory element.
- Latches change the output continuously when there is a change in the input, i.e. they are level triggered.
- Flip-flop is a combination of latch and clock. It changes the output that is adjusted by the clock.
- The main difference between a latch and a flip-flop is that a flip-flop has a clock signal, whereas a latch does not.
- We can say that a flip-flop without a clock is a latch.
- Latches are asynchronous, which means that the output of a latch depends on its input.
- Basically, there are 4 types of latches: SR latch, JK latch, D latch, T latch.
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