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1. Explain the advantages and disadvantages of NAND ROMs as compared to NOR ROMs.
2. Develop a model for the read time of a ROM with 2n rows and 2m columns analogous to that of the SRAM from Section 12.2.6. Assume the wire capacitance in the ROM array is negligible compared to the gate and diffusion capacitance. Assume the ROM cells are laid out such that two cells share a single diffusion contact and hence each contributes only C/2 of diffusion capacitance.
The dual-edge DFF of Figure 13.20(a) was implemented with two DLs and a multiplexer. How can a similar flip-flop be constructed using only multiplexers? Draw the corresponding circuit. What is the minimum number of multiplexers needed?
Straight rods of 6-mm diameter and 30-m length are stored by coiling the rods inside a drum of 1.25-m inside diameter. Assuming that the yield strength is not exceeded
A dc series motor of 230 V, 12 hp, 1200 rpm is connected to a 230 V supply. It draws a current of 40 A, and rotates at 1200 rpm. Ra = 0.25 ohms and Rs = 0.1 ohms. Assume magnetic linearity.
Calculate the drift current in cylindrical piece of material (crossection is 1cm2) with conductivity 10E3 1/Ohm*cm if the internal electric field directed along cylinder axis equals 10 V/cm.
The shunt capacitance is 0.0112 m F per km. The receiving end load is 270 MVA with 0.8 power factor lagging at 325 kV. Use the medium line model to find the voltage and power at the sending end and the voltage regulation.
A proportional controller for a rotating antenna has a gain Kp of 5 in-oz/deg. The antenna was initially pointing due south, but was then commanded to point southeast. Find the initial torque supplied to the antenna.
the pep transmitted by an acssb system is 140 w. it uses an ne571n compandor lic. calculate the power transmitted
The signal transmitted by a Base Station has a power of 1 mW at a distance of 1 m from the transmitter. Measurements have shown that the propagation exponent for the path loss is n=3 up to a distance of 1 km and n=4 beyond that.
A bipolar transistor amplifier is modeled as shown in Fig. P8-17. Find a formula for the available power gain in terms of the appropriate parameters.
why does the heavy part require a bigger motor?
State the meaning of permeability, write down the expression for the permeability of free space, and indciate how it was developed from the Biot-Savart Law.
(a) Design a half-subtractor circuit with inputs X and Y and outputs D and B. The circuit subtracts the bits X-Y and places the difference in D and the borrow in B. (b) Design a full-subtractor circuit with three inputs X,Y,Zand two outputs D and B..
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