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design a 3-bit synchronous counter (using only D-flip flops and NAND gates) that produces the sequence000, 010, 011, 001, 101, 100, 000, etc.whenever the single input is 1. The counter retains its current value whenever the input bit is 0. The output should only change on the rising edge of the clock.
derive minimal functions for the flip flop excitations as well.
What are two types of variables that can be used for values that exceed 256, and describe what is the difference between the variables, how to declare them and the memory allocated, and the numerical range for both.
an unknown semiconductor has Eg=1.1ev and Nv=Nc.it is doped with 10^15 donors,where the donor level is 0.2ev below Ec. given that Ef is 0.25ev below Ec, calculate ni and the concentration of electrons and holes in the semiconductor at 300k.
Design a circuit that takes a sinusoidal input of varying frequency at 1V amplitude and produces an output amplitude of approximately 1V when the frequency is 1 Hz and approximately 0.5V when the frequency is 1,000Hz.
Prove that the terminals of a voltage controlled current source (VCCS) can be connected so as to form a 2 terminal element that behaves exactly like a resistor.
1.Explain aluminum migration in device contacts, and propose possible solutions for the aluminum spikes caused by the migration. 2.What are the two methods for the first step of impurity doping Why a second drive-in step is needed
You are planning to buy a $250,000 house and will take out a mortgage for 80% of the homes value. The term of your mortgage is 15 years and the interest rate is 4%, compounded monthly.
A mass "m = 2 kg" is connected to a spring with spring constant "k= 5 N/m " on a frictionless table oscillation only in 1-D (x direction) . The equation of motion for the mass is given by the equation m (d^2 x(t)/ dt^2) = -kx(t) .
Determine the response of the system when aunit step is applied at input.
For the amplifier in Fig. P4.20, the maximum value of VS is 2 V and the op-amp can deliver no more than 100 mA. (a) If +-10 V supplies are used, what is the maximum allowable value of R2 (b) Repeat for +-3 V supplies.
A HCS12 ATD is set to 10-bit unsigned mode. The voltage references are set to ground and 1.0V What is the ADT output for a temperature of 81 degrees The temperature sensor measures 0 to 100 degrees with an output of 10 mV/degree.
A corporation purchased a machine for $60,000 five years ago. It had an estimated life of 10 years and an estimated salvage value of $9,000. The current book value of this machine is $22,500. If the current market value is $40,000.
Three single phase transformers are used to form a three-phase transformer bank rated 13.8kV (delta)/120kV (wye). One side of the transformer bank is connected to a 120kV transmission line.
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