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Design a "missing pulse detector" similar to the one designed in Problem 14-13. It will be used to monitor the DAV input line in the 4096/4196 schematic. Assume that the DAV line is supposed to provide a 2-μs HIGH pulse every 100 μs Monitor the DAV line with a 74123 monostable multivibrator. Have the 74123 output a HIGH to port 1, bit 7 (P1.7) of the 8031 microcontroller if a missing pulse is detected.
Problem 14-13
The NPRO microprocessor control line is supposed to issue a 10-μs LOW pulse every 150 μs as long as a certain process is running smoothly. Design a "missing pulse detector" using a 74123 that will normally output a HIGH but will output a LOW if a single pulse on the NPRO line is skipped. (Hint: The 74123 will be retriggered by NPRO every 150 μs.)
Suppose you don't know the probability p of getting a ticket, but you got 5 tickets during the year, and you estimate p by the sample mean p =5/250= 0.02. What is the range of possible values of p assuming that the difference between p and the sam..
1) What does an electron in the valence band need to go to the conduction band in a direct bandgap material 2) Si and C are both elements in Group IV ogf the periodic table. What property makes one a semiconductor and the other an insulator
Construct the routing table of router R3 for this configuration
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Determine the Fourier series coefficients for the following discrete-time periodic signal. Plot the magnitude and phasefor each set of coefficients ak x[n] = sin(2πn/3)*cos(πn/2)
if the LM324 is a single supply Op Amp, how can it be used to amplify an AC signal that oscillates between a positive peak and a negative peak
What is the final angle of the shaft?
What is the direction of the magnetic field for a uniform plane wave having its electric field in the positive z-direction and propagating in the positive x-direction?
1. What is the purpose of core in hollow solder wire 2. What is tinning, and why is it important 3. Why is safety so important when soldering 4. Why has lead-free solder replaced lead-based solder. Be sure to properly cite any sources of information.
Draw a block diagram of a closed-loop control system.
Find the first order differential equation for capacitor voltage and solution for capacitor voltage and sketch the waveforms for the fig.
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