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Detail the truth table input-output relationship for a NOR gate.
Press to flip
For inputs A and B, the output Y is: 0 0 -> 1, 0 1 -> 0, 1 0 -> 0, 1 1 -> 0.
What happens in a NOR SR Latch when both S and R inputs are 1?
This state is not allowed in a NOR SR Latch as it leads to a contradiction with both Q and Q' being 0.
How do multi-bit storage capabilities arise in sequential circuits via latches?
By combining multiple latches, sequential circuits can store strings of bits, essential for multi-bit data storage.
What is the difference in input states between NOR and NAND SR Latches?
In a NOR SR Latch, both S=1 and R=1 is invalid, while in a NAND SR Latch, S=1 and R=1 is a valid memory state.
How does the output of a NAND SR Latch respond to S=0, R=1?
The output Q is set to 1, indicating a Set state.
Illustrate the invalid state concept in a NAND SR Latch.
The NAND SR Latch does not have an invalid state as S=1 and R=1 is considered a valid memory state.
Contrast the behavior of NAND SR Latch when S=1, R=0.
The output Q is set to 0, distinguishing it from the NOR SR Latch.
Analyze the possible output states for a NOR SR Latch with S=1 and R=0.
The output Q is set to 1, and Q' is set to 0, indicating the latch is in the Set state.
Describe the memory state of a NOR SR Latch when both S and R inputs are 0.
The latch retains its previous output, effectively maintaining a memory state.
Why is the state S=1, R=1 typically avoided in NOR SR Latches?
It leads to a contradiction where both Q and Q' should be zero, which is logically inconsistent.
Define a latch in the context of digital electronics.
A latch is the basic storage element in sequential circuits used to store a single bit of information.
Explain the functionality of the S (Set) and R (Reset) inputs in a NOR SR Latch.
The S input sets the output Q to 1, and the R input resets the output Q to 0. If both S and R are 0, the latch retains its state.
In the context of SR Latches, why is understanding the logical operations important for future digital circuits?
Grasping SR Latches is essential for understanding more complex sequential circuits like flip-flops, counters, and registers.
What is the primary distinction between sequential and combinational circuits?
Sequential circuits contain a memory block that allows them to store past outputs, unlike combinational circuits.
What indicates a memory-preserving state in an SR Latch?
Both inputs S and R being 0, causing the output to stay the same as the previous state.
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