The static RAM 6264 is located starting at address 9E000 of the 8086 address space as shown in the figure below. a) What is the value of n? (see the notes below) b) Show the address decoding circuitry adding external logic gates if necessary. • You can use the table below to analyze the address. • You must show all the connections to A, B, C, (G2A), (G2B), and G1. • The address lines connected to the 6264 are indicated by n and the data lines are indicated by d. You must also show the connection between the 74LS138 and the 6264 clearly on the figure below.

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Describe in a short paragraph the difference between combinational logic circuits and sequential logic circuits.

Consider a family of logic gates that operate under the static discipline with the following voltage thresholds: VI=1.5V, VOL=0.5V, VIH=3.5V, and VOH=4.4V.   a. What is the lowest voltage that can be output by an inverter for a logical 1 output? Why?   b. What is the highest voltage that must be interpreted by a receiver as logical 0? Why?   c. What is the lowest voltage that must be interpreted by a receiver as logical 1? Why?

(b) Figure Q2(b) shows input waveforms of A, B and C. Draw the logic circuit that will generate the output waveform X. A Inputs B Output X Figure Q2(b) : Input and output waveforms

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Please do part b using the Assumption

Draw the output waveform C and D, given the input waveforms A and B as shown belowfigure 2.Figure 2b) Verify the result from part (a) by any using simulation tools. (Screen shoot only for thefollowing input cases: when (A=0, B=0), (A=1, B=0) and (A=0, B=1).  c) For the logic circuit given in Figure 3, obtain the output expression for ?

Implement the logic circuit in Figure 2 using only NAND gate A B C X

The following diagram shows a logic circuit using a combinatorial chip called A, and a sequential chip called B.   Which wiring is legal, the wiring around chip A or the wiring around chip B. Select one: a. the wiring around chip A. b. the wiring around chip B.