ECE 231 - Fall 2023 - HW1 - Solutions

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d) Draw the schematics of 4-bit synchronous and asynchronous MOD-8 counters and comment on their pros and cons. e) Calculate the noise margin for a logic gate with the following logic levels: VIL = 1.1 V, VIH = 3.2 V, VOL = 0.6 V, VOH = 4.0 V.

The waveforms in Figure 08 are applied to the 4-bit parity logic. Determine the output wave-form in proper relation to the inputs. For how many bit times does even parity occur, and how is it indicated? The timing diagram includes eight bit times. Q.21 Bit time Ao A1 A2 A3 FIGURE 08

Design the following combinational logic circuit with a four-bit input and a three-bit output. The input represents two unsigned 2-bit numbers: A1 A0 and B1 B0. The output C2 C1.C0 is the result of the integer binary division A1 A0/B1 B0 rounded down to three bits. The 3-bit output has a 2-bit unsigned whole part C2 C1 and a fraction part CO. The weight of the fraction bit CO is 21. Note the quotient should be rounded down, i.e. the division 01/11 should give the outputs 00.0 (1/3 rounded down to 0) not 00.1 (1/3 rounded up to 0.5). A result of infinity should be represented as 11.1. A minimal logic implementation is not required. (Hint: start by producing a truth table of your design).

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need help with digital logic

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Below is an example of an NMOS logic circuit. For all of the MOSFETs in the circuit below, assume V = 1 V and k = 50 mA/V². th W R₂ = 5600 PEETHIPPIN R₁ - 4700 M3 M₁ M. 0 a. Indicate and verify the state of each MOSFET and V for the following input combinations. Fill-out the table below for each assumed state of the MOSFET for every input combination. Use R approximation for linear operation and three significant ds(on) figures for the voltages. 오 Ao SV why

The numbers from 0-9 and a no characters is the Basic 1 digit seven segment display * .can show False True In a (CA) method of 7 segments, the anodes of all the LED segments are * "connected to the logic "O False True Some times may run out of pins on your Arduino board and need to not extend it * .with shift registers True False

H.W: Reduce the combinational logic circuit in Figure below to a minimum form.

Draw in Table 3 the circuit schematic of each segment using the basic logic gates in kmap

What are the values of the inputs a, b, c, d, e, f and g for a Seven-Segment LED that displays the number 2? Assume active high logic. a) 1101101 b) 1010101 c) 1101110 d) None of the above e) All of the above

Problem 5 For the logic circuits shown below: determine the output F, write the true table, and draw the output F in proper relation to the given inputs with a timing diagram. a) A B F F 1. b) 1. F 1. C

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

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