Sequential circuits are different from combinational logic circuits as they depend on their previous states in addition to their current inputs.
Sequential circuits are different from combinational logic circuits as they depend only on their current inputs.
Asynchronous sequential circuits allow their behavior to be defined knowing its signals at distinct moments in time. Synchronous sequential circuits allow their behavior to be defined knowing the input signals at any moment in time and the order in which they change.
Synchronous sequential circuits allow their behavior to be defined knowing its signals at distinct moments in time. Asynchronous sequential circuits allow their behavior to be defined knowing the input signals at any moment in time and the order in which they change.
No, because the enable has not been pressed so the circuit cannot activate a change.
Yes, because the enable has not been pressed so the circuit can activate a change.
No, the probe does not change because enable is activated and input is “1”.
Yes, now the probe has changed because enable is activated and input is “1”.
No, the probe does not change because enable is activated and input is “0”.
Yes, the probe has changed because enable is activated and the input changes.
Yes, because the enable has not been pressed but input is “1”.
Is the same.
Differ.
Yes
No
Despite S changing from 1 to 0, the probe remained lit up because the reset state remains zero.
The probe went out because S changing from 1 to 0.
When R changed to 1 it reset the probe and thus put it back to off because S was false. This change was able to occur because enable is set to false.
When R changed to 1 it reset the probe and thus put it back to off because S was false. This change was able to occur because enable is set to true.
Both is zero, Yes it is
Both is zero, No it isn’t
D latches are a simplification of SR latches. With a D latch ‘R’ is wired to be the same with ‘S’ thus eliminating the indeterminate state. With an SR latch, the S and R signals must be coordinated so they are never both 1.
D latches are a simplification of SR latches. With a D latch ‘R’ is wired to be the opposite of ‘S’ thus eliminating the indeterminate state. With an SR latch, the S and R signals must be coordinated so they are never both 1.
The number and type of latches
Only on the inputs
Current inputs and previous behavior
The previous 4 bits
SR latches
Clock signals
Gated D latch
None of the above
2 AND and 2 NOR gates
2 AND and XNOR gates
2 AND and XOR gates
2 AND and NOT gates
A don’t care condition
The current value of the output
Removing the Q (t+1) state
The next step
Reducing the number of logic gates needed for the circuit
Having only the following two inputs: D and Clk or En
Removing the Q(t + 1) state
Adding another output
