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Question 44383

posted 10 months ago

Your task is to design logic controller for a bike share program. The bike share logic controller should operate asfollows. There will be a two sensors and a keypad. One sensor will detect the presence of a bicycle. The secondsensor will detect the presence of a person. A keypad will accept codes to unlock the bicycle.
There is a LCD screen and a mechanical locking mechanism. If there is no person present, the system enters sleep mode, the LCD will turns off, and the bicycle remains locked. If a person is present and enters the correct code, the display will say "Bike Unlocked" and the bicycle will be unlocked. If a person enters the wrong code,the display will say "Enter a valid code" and the bicycle will remain locked. If a person is present, but there is no bicycle, the LCD display will say "No bikes available".
(a) How many inputs does this system have? List the inputs.
(b) How many states can this system be in? List all of the states.
(c) How many outputs will there be?
(d) Write the sum of products for all outputs.
(e) Construct a Karnaugh map (k-map) for all outputs.
(f) Generate the simplified Boolean equations for all outputs from all the k-maps.
(g) Draw a logic circuit for all outputs.

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Question 44384

posted 10 months ago

integrated circuits manufactured? Write a short paragraph.
) Label the transistors below as PMOS or NMOS. Describe in one or two sentences how MOSFETS work.
c) Below on the right, there is a diagram of a gate implemented with MOSFET transistors. The same gate is also shown implemented with relays.
What kind of logic gate is this? (circle one)
AND--OR--NOT---NAND----NOR---XOR----XNOR
Write the truth table for this gate, and describe in brief how each row of the truth table is physically realized by these elements.

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Question 44487

posted 10 months ago

7. Draw the circuit and truth tables for the following equations
(a) (a * č) + (b* c)
(b) (a* b* č) + (ā * b* €)

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Question 44485

posted 10 months ago

5. Convert the following binary numbers into heaxadecimal(o) 1111 01011100 0001
(a) 1111 0101 1100 0001
(b) 0011 0111 0011 1111
(c) 0110 1010 1101 0100

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Question 44481

posted 10 months ago

1. Convert the following decimal numbers into 8 bit two's complement numbers. Indicate whether thedecimal number would overflow the range.
13010
) -6710
) -7910
126---10
-131--10

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Question 44484

posted 10 months ago

4. Whať's the largest 16-bit binary number that can be represented with:
(a) Unsigned binary(b) Two's complement(c) Sign/Magnitude

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Question 44486

posted 10 months ago

Convert the following hexadecimal numbers into binary and decimal
(a) 0×45FD
(b) ОхАВ24
(c) 0x1256

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Question 44483

posted 10 months ago

3. Add the following numbers using 8-bit binary addition, indicate whether there is overflow.
(а) —1110 + 2310(b) –12410 + 12710(с) 6510 + 4310(d) –1510 + 12010

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Question 44482

posted 10 months ago

2. Convert the following 4 bit two's complement numbers to 8 bit two's complement numbers.
(а) 1101(b) 0110(с) 1001

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Question 44573

posted 10 months ago

Problem 1: (2 + 2 + 2 + 2 + 2 pts) Show a truth table for each of the following circuits:

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