Design a synchronous Up/Down counter to produce the following sequence (4 9 2,0,7,6,3,1,5) using T flip-flop. The counter should count up when Up/Down =1, and down when Up/Down = 0.

Design a sequence detector that detects the sequence 1010. This detector has one input X, and one output Y. The output Y is set to 1 only when the input sequence for X is a 0 followed by a 0 by followed by another 0 and finally followed by a 1, detecting the sequence, otherwise the output Y is set to 0. Using D-type flip-flops in designing this detector. 1.Show the state diagram 2.Show the state table3. Draw the logic diagram of the designed device

5. JK flip-flops are often used to build counters. The JK flip-flop will toggle the original output value when triggered by the clock signal if both the J,K inputs are connected with a constant "high"(logic 1). All the JK flip-flops in Figure 2 are negative edge triggered. All the initial values of Q2Q1Q0 are 0. Qo (LSB) (MSB) Input K K Logic 1 Input Q2 000 Figure 2. Counter (a) Sketch the output waveforms forQ2 Q1 Q0. Write down the output binary value (Q2Q1Q0: such as "000", "001") for each clock period on the figure. (b) Describe the function of the counter (e.g. binary down counter counting from 7 to 0).

5. A sequential circuit has two flip-flops A and B, one input X, and one output Y. The state diagram is shown in the following figure. Design the circuit with D flip-flops using a 1-hot state assignment. 00/1 01/0 11/0 10/0

why is the 555 timer needed for parts b,c,d

show the waveforms for each flip-flop output with respect For the ring counter in Figure to the clock. Assume that FF0 is initially SET and that the rest are RESET. Show at least ten clock pulses. D D. FFO FF1 FF2 FF3 FF4 FF5 FF6 FF7 FF8 FP9 CLK

create the schematic needed for part b and c please

#9

Design a combinational circuit using multiplexer for a car chime based on thefollowing system: A car chime or bell will sound if the output of the logic circuit(X) is set to a logic ‘1’. The chime is to be sounded for either of the followingconditions:• if the headlights are left on when the engine is turned off and• if the engine is off and the key is in the ignition when the door is opened.Use the following input names and nomenclature in the design process:• ‘E’ – Engine. ‘1’ if the engine is ON and ‘0’ if the engine is OFF• ‘L’ – Lights. ‘1’ if the lights are ON and ‘0’ if the lights are OFF• ‘K’ – Key. ‘1’ if the key is in the ignition and ‘0’ if the key is not in the ignition• ‘D’ – Door. ‘1’ the door is open and ‘0’ if the door is closed• ‘X’ – Output to Chime. ‘1’ is chime is ON and ‘0’ if chime is OFF

please explain part d and explain how it would look like on a breadboard