Say we have an LED that will turn on when driven with a low signal from the output of a single logic gate. The two inputs to the logic gate are a 3 Hz digital pulse generator and a switch that goes low when the gas in a car gets below a certain level. We'd like the LED to flash on and off at 3 Hz when the gas gets low in the car. What type of single 2-input logic gate should be used in this situation? Draw the logic diagram.
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- A question about 74LS04 IC (a Schmitt Trigger). The pictures show the 74LS04 logic, the connection required and data sheet. Question a)In order to light up the LED, what should Pin 1 and Point A connected to? Ans: Pin 1 connected to (5V / GND), Point A connected to (5V / GND). b)In this example, the power that lights up the LED comes from where? c)What is the current shown on the multi-meter? Is the current flowing out from Pin 2 or flowing into the Pin 2?We want to design a circuit to detect prime numbers.The input of the circuit is a 4-bit binary number and the output is a single bit and should show one when the number is prime and zero otherwise.B. Implement the circuit using a 4× 1 multiplexer and combinational logic gates.C. Implement the circuit using only one decoder and one OR gate. What is the size of the decoder you use?There are 5 gates in a metrobus, 1 of which is to get on and 4 to get off. The number of passengers inside is desired to be seen on the LCD connected to the P2 port. Get-on gate is controlled by the P0.2 while get-off gates are controlled by the P0.3, P0.4, P0.5, and P0.6. The sensors generate Logic-1 while passing passengers. Since the passenger carrying capacity of the metrobus is 294, if the number of passengers exceeds the number of 294, the warning LED connected to the P0.7 pin is required to light up. Since other pins of P0 are used for other purposes, it is not desired to be changed. Can you write the answer with assembly code using 8051 - AT89S8253 architecture?
- Given the logic function: F(A,B,C,D) = Σm(0,4,5,10,11,13,14,15) a. Find a minimum circuit which implements F using AND and OR gates. Identify two 1-hazards in the circuit. b. find another minimum circuit which implements F using AND and OR gates. Identify two 0-hazards in the circuit. c. Find an AND-OR circuit for F which has no hazards.5) below is the accuracy table showing the output values for two separate binary number entries (W and Y) with a length of two bits. Get the simplest form of output functions with the Karnaugh diagram. Draw a logic diagram of the circuit that performs the function of these functions.Describe in detail which functions a, b and C perform for 2-bit binary numbers in the input.Use Digital Logic Simulator Fill-in the blank boxes with the correct LOGIC GATE/ Full/Half Adder
- With a neat logic diagram and shifting table, explain the shifting of given bit stream 1011001 entered from LSB in serial –in-serial-out 4 bit shift right register. Also mention after how many clock pulses, MSB is retrieved.F(a,b,c,d)=ab'+c'd'+a'cd' Perform the function in accordance with the following styles using the Karnaugh diagram. Draw each simplification using the corresponding logic gates. a) only or not (NOR) b) and not just (NAND) c) OR-NAND d) AND-NORchoose the correct answer If a two-input logic gate produces a output of logic HIGH, only if both inputs are different, then the logic gate is? a. IC 7400 b. IC 7486 c. IC 7408 d. IC 7432
- Design 3 systems that represent minterm 30 for a 5-input system: 1.-using logic gates, with a maximum of two inputs each, which represent a low active output. Ensures efficient interpretation of the diagram 2.- exclusively using two-input NAND logic gates 3.- Using components at TTL level.Determine output 1 or 0 for following logic gate combinations with given inputs the clear bubbles are inversionsS Display will be designed for a thermometer. The display will show that degree for minimum temperature and 99 degrees for maximum temperature. According to this; a) What is the number of bits that will be needed in the binary code to express the temperature? b) What are the binary, octal and hexadecimal equivalents of 95 degrees? () What is the BCD representation of 95 degrees? d) What is the hex equivalent of this temperature when it shows 111 degrees octal? e) If the thermometer showed a temperature between -99 and +99 degrees, how many bits would we need?