A. Design a divide-by-2 circuit using ½ of 7474. Hint: The D-input must change state (value)...
A. Design a divide-by-2 circuit using ½ of 7474. Hint: The
D-input must change state (value) on each
positive clock edge; in other words, the output toggles on each
positive clock edge. Show a
complete schematic diagram.
B. Design a divide-by-2 circuit using ½ of 7476. Show a complete
schematic diagram.
C. Design a divide-by-8 circuit using as many 7474 as necessary.
Show a complete schematic diagram.
Homework Answers
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A. Design a divide-by-2 circuit using ½ of 7474. Hint: The
D-input must change state (value)...
2 Design a circuit that has two inputs, clk and X, and produces one output O....
2 Design a circuit that has two inputs, clk and X, and produces one output O. Xmay change every clock cycle and the change happens at the falling edge. The circuit samples the input at every rising edge of the clock. O is 1 (for one clock cycle, from positive edge to positive edge) if the last values of X over the last three cycles were 101. (a) Complete the following the state transition diagram for this circuit. Assume that...
9. Product State Graph ou are asked to design a sequence detector to detect the input codes 10 and 01. The input of the circuit is and the output is Z, which only changes at a clock edge. Overla...
9. Product State Graph ou are asked to design a sequence detector to detect the input codes 10 and 01. The input of the circuit is and the output is Z, which only changes at a clock edge. Overlaps must also be detected. Z only changes at the clock edge . [2%] A. Restate the problem by circling the most appropriate term within the parentheses 1. The circuilt type is (combinational- asynchronous- FSM). 2. The subcategory of the circuit is...
Using D flip-flops, design a Moore circuit that detects the sequence 1100. The circuit outputs I...
Using D flip-flops, design a Moore circuit that detects the sequence 1100. The circuit outputs I when the sequence 1100 is received and outputs 0 otherwise. Draw the state diagram and state table, and find the D flip-flops input equations and the output equation x- Z Clock Hint: X: 01011 00011001100011 Z: 0 0 0 0 0 0 100000000000
A seven segment decoder is a digital circuit that displays an input value 0 through 9 as a digital output in the 7-segment display. The behavior of this design can be modeled with the schematic diagra...
A seven segment decoder is a digital circuit that
displays an input value 0 through 9 as a digital output in the
7-segment display. The behavior of this design can be modeled with
the schematic diagram below, where DCBA is the 4-bit input (D is
the most significant bit and A is the least significant bit) and
abcdefg is the 7-segment output.
2. (20 POINTS) A seven segment decoder is a digital circuit that displays an input value 0 through...
1. The D Flip-Flop ) Look for the datasheet of the 7474 D flip-flop and wire it on the breadboard...
1. The D Flip-Flop ) Look for the datasheet of the 7474 D flip-flop and wire it on the breadboard making sure to supply 5V to both Preset and Clear. Utilize the function generator to provide a Clock signal of 1 Hz: i) Press AMPL and set value to 5 Vpp ii) Press FREQ and set value to 1 Hz ili) Press OFFSET and set value to 2.5 V This Clock signal will be the same for all circuits in...
Design a divide-by-six circuit, using any standard gates and/or flip-flops you wish. (When a 60Hz square...
Design a divide-by-six circuit, using any standard gates and/or flip-flops you wish. (When a 60Hz square wave signal is provided as input to this circuit, a 10Hz signal should result.) For full credit, this output signal should also have exactly a 50% duty cycle, even if the input duty cycle is not 50%. Draw the schematic for the circuit, along with any calculations or design techniques you use.
4. (30 pts.) Construct an asynchronous sequential dual edge trigger circuit which at each change (0 1 or 10) of the inp...
4. (30 pts.) Construct an asynchronous sequential dual edge trigger circuit which at each change (0 1 or 10) of the input signal w generates a short pulse at the output z. When the input signal is unchanged, the output should be z 0. Output pulse length is given by the time for the transition state in the asynchronous sequential circuit. See timing diagram for clarification. Your answer must include a state diagram, if necessary minimized, a flow table, and...
5) Decoders: Given the following circuit, S0 and S1 are computed using a 4-2 priority encoder with the priorities indicated on the figure. (hint: IDLE signal is always 0, if any of the inputs...
5) Decoders: Given the following circuit, S0 and S1 are computed using a 4-2 priority encoder with the priorities indicated on the figure. (hint: IDLE signal is always 0, if any of the inputs 10,11,12, or 13 is 1) 6 points) 4-to-2 Priority Encoder 10 YO YI 13 IDLE 13> 11 > 12>10 12 Full c Adder So Fill the following table showing the output signals S0 and SI given the input signals w, x, y, a) and z. Prof...
2. (20 points) Instead of using a Moore machine to implement the sequence detector in problem...
2. (20 points) Instead of using a Moore machine to implement the sequence detector in problem 1, derive a state diagram for a Mealy machine that will perform this operation. 1. (20 points) For this problem, we want to design a circuit that checks for the input sequence 00101. Your circuit will have a one-bit input W and a one-bit output Z where Z-1 if the last five values of W observed on each positive edge of the clock are...
We want to design a circuit that takes as input a serial bit stream and outputs...
We want to design a circuit that takes as input a serial bit stream and outputs a 'l' whenever the sequence “111” occurs. Overlaps must also be considered. For instance, if... occurs, then the output should remain active for three consecutive clock cycles. 3.1) Draw the state diagram of the finite state machine. 3.2) Write the System Verilog model for the design.
2 Design a circuit that has two inputs, clk and X, and produces one output O. Xmay change every clock cycle and the change happens at the falling edge. The circuit samples the input at every rising edge of the clock. O is 1 (for one clock cycle, from positive edge to positive edge) if the last values of X over the last three cycles were 101. (a) Complete the following the state transition diagram for this circuit. Assume that...
9. Product State Graph ou are asked to design a sequence detector to detect the input codes 10 and 01. The input of the circuit is and the output is Z, which only changes at a clock edge. Overlaps must also be detected. Z only changes at the clock edge . [2%] A. Restate the problem by circling the most appropriate term within the parentheses 1. The circuilt type is (combinational- asynchronous- FSM). 2. The subcategory of the circuit is...
Using D flip-flops, design a Moore circuit that detects the sequence 1100. The circuit outputs I when the sequence 1100 is received and outputs 0 otherwise. Draw the state diagram and state table, and find the D flip-flops input equations and the output equation x- Z Clock Hint: X: 01011 00011001100011 Z: 0 0 0 0 0 0 100000000000
A seven segment decoder is a digital circuit that
displays an input value 0 through 9 as a digital output in the
7-segment display. The behavior of this design can be modeled with
the schematic diagram below, where DCBA is the 4-bit input (D is
the most significant bit and A is the least significant bit) and
abcdefg is the 7-segment output.
2. (20 POINTS) A seven segment decoder is a digital circuit that displays an input value 0 through...
1. The D Flip-Flop ) Look for the datasheet of the 7474 D flip-flop and wire it on the breadboard making sure to supply 5V to both Preset and Clear. Utilize the function generator to provide a Clock signal of 1 Hz: i) Press AMPL and set value to 5 Vpp ii) Press FREQ and set value to 1 Hz ili) Press OFFSET and set value to 2.5 V This Clock signal will be the same for all circuits in...
Design a divide-by-six circuit, using any standard gates and/or flip-flops you wish. (When a 60Hz square wave signal is provided as input to this circuit, a 10Hz signal should result.) For full credit, this output signal should also have exactly a 50% duty cycle, even if the input duty cycle is not 50%. Draw the schematic for the circuit, along with any calculations or design techniques you use.
4. (30 pts.) Construct an asynchronous sequential dual edge trigger circuit which at each change (0 1 or 10) of the input signal w generates a short pulse at the output z. When the input signal is unchanged, the output should be z 0. Output pulse length is given by the time for the transition state in the asynchronous sequential circuit. See timing diagram for clarification. Your answer must include a state diagram, if necessary minimized, a flow table, and...
5) Decoders: Given the following circuit, S0 and S1 are computed using a 4-2 priority encoder with the priorities indicated on the figure. (hint: IDLE signal is always 0, if any of the inputs 10,11,12, or 13 is 1) 6 points) 4-to-2 Priority Encoder 10 YO YI 13 IDLE 13> 11 > 12>10 12 Full c Adder So Fill the following table showing the output signals S0 and SI given the input signals w, x, y, a) and z. Prof...
2. (20 points) Instead of using a Moore machine to implement the sequence detector in problem 1, derive a state diagram for a Mealy machine that will perform this operation. 1. (20 points) For this problem, we want to design a circuit that checks for the input sequence 00101. Your circuit will have a one-bit input W and a one-bit output Z where Z-1 if the last five values of W observed on each positive edge of the clock are...
We want to design a circuit that takes as input a serial bit stream and outputs a 'l' whenever the sequence “111” occurs. Overlaps must also be considered. For instance, if... occurs, then the output should remain active for three consecutive clock cycles. 3.1) Draw the state diagram of the finite state machine. 3.2) Write the System Verilog model for the design.
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