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Recent questions tagged combinationalcircuits
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Morris Mano Edition 3 Exercise 5 Question 35,36 (Page No. 201)
List the PLA programming table for the BCDtoexcess3code converter whose boolean functions are given in the figure. repeat the above problem using a PAL.
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Morris Mano Edition 3 Exercise 5 Question 34 (Page No. 201)
Derive the PLA Programming table for the combinational circuit that square a 3bit number.Minimize the number of product term.
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Morris Mano Edition 3 Exercise 5 Question 33 (Page No. 201)
Tabulate the PLA programming table for the four boolean functions given. Minimize the number of product terms. $A(x,y,z) = \sum (1,2,4,6)$ $B(x,y,z) = \sum (0,1,6,7)$ $C(x,y,z) = \sum (2,6)$ $D(x,y,z) = \sum (1,2,3,5,7)$
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Morris Mano Edition 3 Exercise 5 Question 31 (Page No. 200)
Tabulate a truth table for an $8 \times 4$ ROM that implements the following four boolean functions: $A(x,y,z) = \sum (1,2,4,6)$ $B(x,y,z) = \sum (0,1,6,7)$ $C(x,y,z) = \sum (2,6)$ $D(x,y,z) = \sum (1,2,3,5,7)$
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Morris Mano Edition 3 Exercise 5 Question 31 (Page No. 200)
specify the size of a ROM ( Number of words and number of bits per words) that will accommodate the truth table for the following combinational circuit components: A binary multiplexer that multiplies two 4bit numbers. A 4 ... to1 line multiplexer with common select and enable inputs. A BCDtosevensegment decoder with an enable input.
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Morris Mano Edition 3 Exercise 5 Question 30 (Page No. 200)
A ROM chip of 4096 $\times$ 8 bits has two enable inputs and operates from a 5volt power supply. How many pins are needed for the integratedcircuit package? draw a block diagram and label all the input and output terminals in the ROM
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Morris Mano Edition 3 Exercise 5 Question 29 (Page No. 200)
given a $32 \times 8 $ ROM chip with the enable input, show the external connection which is necessary to construct a $128 \times 8$ ROM with 4 chips and a Decoder.
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Morris Mano Edition 3 Exercise 5 Question 28 (Page No. 200)
Implement the following boolean function with $4 \times 1$ multiplexer and external gates, connect A and B to selection lines. The input requirement for the four lines will be a function of C and D. These values are obtained by expressing F as a function ... be implemented with the external gates. $F(A,B,C,D) = \sum(1,3,4,11,12,13,14,15)$
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Morris Mano Edition 3 Exercise 5 Question 27 (Page No. 200)
An $8 \times 1$ multiplexer has inputs A,B and C connected to the selection inputs $s _2,s _1$ and $s _0$ respectively.The data inputs $I _0$ through $I _7$ are as follows: $I _1 = I _2 = I _7 = 0$; $ I _3 = I _5 = 1$; $ I _0 = I _4 = D$; and $I _6 = D’$.Determine the boolean function that the multiplexer implements.
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Morris Mano Edition 3 Exercise 5 Question 26 (Page No. 200)
Implement the boolean function $F(A,B,C,D) = \sum(0,1,3,4,8,9,15)$ with an $8 \times 1$multiplexer, but with inputs A,B and C connected to selection inputs $s _2,s _1$ and $s _0$ respectively.
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Morris Mano Edition 3 Exercise 5 Question 25 (Page No. 200)
Implement a Full adder with two $4 \times 1$ multiplexers.
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Morris Mano Edition 3 Exercise 5 Question 24 (Page No. 200)
implement the following boolean function with an $8 \times 1$ multiplexer. $F(A,B,C,D) = \sum(0,3,5,6,8,9,14,15)$
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Morris Mano Edition 3 Exercise 5 Question 23 (Page No. 200)
Construct a $16 \times 1$ multiplexer with two $8 \times 1$ and one $ 2 \times 1$ multiplexers.use the block diagram for the three multiplexers.
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Morris Mano Edition 3 Exercise 5 Question 22 (Page No. 200)
Draw the logic diagram of a dual 4to1 line multiplexer with common selection inputs and a common enable input.
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Morris Mano Edition 3 Exercise 5 Question 21 (Page No. 200)
specify the truth table of an Octaltobinary priority encoder. Provide an output V to indicate that at least one of the input is 1. The input with the highest subscript number has the highest priority. What will be the value of the four outputs if input $D _3$ and $D _5$ are 1 and the other inputs are all )’s?
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Morris Mano Edition 3 Exercise 5 Question 20 (Page No. 199)
Design a 4input priority encoder with inputs as given in the tables, but with the input $D _0$ having the highest priority and the input $D _3$ have the lowest priority .
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Morris Mano Edition 3 Exercise 5 Question 19 (Page No. 199)
Rearrange the truth table for the circuit in the figure and verify it can function as demultiplexerr.
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Morris Mano Edition 3 Exercise 5 Question 18 (Page No. 199)
Construct a $5 \times 32 $ decoder with four $3\times8$ decoders with enable and one $ 2 \times 4$ decoder. use a block diagram also.
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Morris Mano Edition 3 Exercise 5 Question 17 (Page No. 199)
Draw the logic diagram of a 2to4 line decoder with only NOR gates. Include an Enable input.
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Morris Mano Edition 3 Exercise 5 Question 16 (Page No. 199)
A combinational circuit is specified by the following three boolean functions. implement the circuit with $3 \times 8$ decoder constructed with NAND gates and three external NAND or AND gates. Use a block diagram for the decoder. Minimize the number of input in the external gates. ... $F _3(A,B,C) = \sum(0,2,3,4,7)$
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Morris Mano Edition 3 Exercise 5 Question 15 (Page No. 199)
A combinational circuit is defined by the following three boolean functions. Design a circuit with a decoder and External Gate. F1 = x’y’z’ + xz F2 = xy’z’ + x’y F3 = x’y’z + xy
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Morris Mano Edition 3 Exercise 5 Question 14 (Page No. 199)
Design a BCD to Decimal decoder using the unused combinations of the BCD code as don’t care conditions.
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Morris Mano Edition 3 Exercise 5 Question 13 (Page No. 199)
Design a combinational circuit that compares two 4bit numbers A and B to check if they are equal. the Circuit has one output x, so that when x = 1 if A = B and x = 0 if A and B is not equal.
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Morris Mano Edition 3 Exercise 5 Question 12 (Page No. 199)
It is necessary to design a decimal Adder for two digits represented in Excess3 code. Show that the correction after adding the two digits with a fourbit binary adder is as follows. The output carry is equal to the carry from ... output carry is 0 then add 1101. construct a fourbit decimal adder using two 4bit adders and an inverter..
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Morris Mano Edition 3 Exercise 5 Question 11 (Page No. 198)
Construct a 4digit BCD addersubtractor using 4 BCD adders. Use the Block diagram for each component, showing only inputs and outputs.
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Morris Mano Edition 3 Exercise 5 Question 10 (Page No. 198)
Design a combinational Circuit that generates the 9’s complement of a BCD digit.?
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Morris Mano Edition 3 Exercise 5 Question 9 (Page No. 198)
How many Unused Combinations are there in BCD adder?
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Morris Mano Edition 3 Exercise 5 Question 8 (Page No. 198)
Derive the twolevel Boolean expression for the output carry $C _5$ shown in the lookahead carry generator of the figure
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Morris Mano Edition 3 Exercise 5 Question 6 (Page No. 198)
Assume that the EXCLUSIVEOR gate has a propagation delay of 20ns and that the AND and OR gates have a Propagation delay of 10ns. What is the total Propagation delay time in the fourbit adder of the figure given below?
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Morris Mano Edition 3 Exercise 5 Question 6 (Page No. 198)
(a) Redefine the carry propagate and carry generate as follows: $P _i = A _i + B _ i$ $G _i = A _iB _i$ ... circuit for this IC. [Hint: use the equation substitution method and ANDORINVERT funtion given in part (a) for $C _{i+1}$
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