search
Log In

Recent questions tagged digital-circuits

0 votes
1 answer
1
ECL is the fastest of all logic families. High speed in ECL is possible because transistors are used in difference amplifier configuration, in which they are never driven into ________. Race condition Saturation Delay High impedance
asked Mar 24 in Digital Logic jothee 60 views
3 votes
2 answers
2
The following circuit compares two $2$-bit binary numbers, $X$ and $Y$ represented by $X_1X_0$ and $Y_1Y_0$ respectively. ($X_0$ and $Y_0$ represent Least Significant Bits) Under what conditions $Z$ will be $1$? $X>Y$ $X<Y$ $X=Y$ $X!=Y$
asked Jan 13 in Digital Logic Satbir 596 views
2 votes
2 answers
3
The gates G1 & G2 in the figure have propagation delays of 10ns and 20ns respectively. If the input Vi makes an abrupt change from logic 0 to 1 at time t=t0 , then what's the output waveform V0 is ? Also please explain how to handle such kinds of questions of waveform? ​​​​
asked Jun 14, 2019 in Digital Logic Gitika Babbar 626 views
0 votes
0 answers
5
0 votes
0 answers
7
The adder-subtractor circuit of figure has the following values for mode input M and data inputs A and B. In each case, determine the values of the outputs: $S _ 4 S _3 S _2 S _1$ and $C _5$. M A B 0 0111 0110 0 1000 1001 1 0101 1000 1 0000 1010
asked Apr 3, 2019 in Digital Logic ajaysoni1924 372 views
0 votes
0 answers
8
The adder-subtractor of the figure is used to subtract the following unsigned 4-bit number: 0110 – 1001(6 – 9) What are the binary values in the nine inputs of the circuit $?$ what are the binary values of the five outputs of the circuit$?$ Explain How the output is related to the operation of 6 – 9.
asked Apr 3, 2019 in Digital Logic ajaysoni1924 150 views
1 vote
0 answers
9
Construct a BCD-to-Excess-3-code converter with a 4-bit adder.remember that the Excess-3 code digits obtained by adding 3 to the corresponding BCD Digit. what must be done to change the circuit to an excess-3-to-BCD-code converter
asked Apr 3, 2019 in Digital Logic ajaysoni1924 100 views
0 votes
0 answers
10
0 votes
0 answers
11
1 vote
0 answers
12
Manipulate the following Boolean Expression in such a way so that it can be implemented using exclusive-OR and AND gates only. $AB’CD’ + A’BCD’ + AB’C’D + A’BC’D$
asked Apr 2, 2019 in Digital Logic ajaysoni1924 37 views
0 votes
0 answers
14
1 vote
1 answer
15
A BCD to seven segment decoder is a combinational circuit that converts a decimal digit in BCD to an appropriate code for the selection of the segments in the display indicator used for displaying the decimal digit in the familiar form. The seven output of the ... to Seven-segment decoder using the minimum number of the NAND gates. the Six invalid combinations should result in a blank display.
asked Apr 2, 2019 in Digital Logic ajaysoni1924 78 views
0 votes
0 answers
16
Design a combinational Circuit that converts a binary number of 4-bits to decimal number in BCD. Note that the BCD number is the same as the binary number as long as the digit is 9 or less than 9. binary numbers from 1010 to 1111 converts into BCD numbers from 1 0000 to 1 0101.
asked Apr 2, 2019 in Digital Logic ajaysoni1924 55 views
0 votes
0 answers
19
Design a combinational circuit that detects an error in the representation of a decimal digit in BCD. The output of the circuit must be equal to logic -1 when the input contains any one of the six unused bit combinations in the BCD code.
asked Apr 2, 2019 in Digital Logic ajaysoni1924 95 views
0 votes
0 answers
20
0 votes
0 answers
21
Design a combinational Circuit with four inputs that represent a decimal digit in BCD and the four outputs that Produce the 9’s complement of the input digit. Six unused combinations can be treated as Don’t care conditions.
asked Apr 2, 2019 in Digital Logic ajaysoni1924 69 views
0 votes
0 answers
22
Design a combinational Circuit with four inputs that represent a decimal digit in BCD and the four outputs that Produce the 9’s complement of the input digit. Six unused combinations can be treated as Don’t care conditions.
asked Apr 2, 2019 in Digital Logic ajaysoni1924 21 views
0 votes
0 answers
23
0 votes
0 answers
25
0 votes
0 answers
26
A combination circuit produces the binary sum of two bits numbers, $x _1x _0$ and $y _1 y _0$. the outputs are C, $S _1 $ and $S _0$. Design a combinational Circuit of problem using two full adders.
asked Apr 2, 2019 in Digital Logic ajaysoni1924 20 views
0 votes
0 answers
27
A combinational circuit produces the binary sum of 2-bit numbers, $x _1x _0 and y _1y _0$. the outputs are C. s1. and s0. Provide the truth table of the combinational circuit
asked Apr 2, 2019 in Digital Logic ajaysoni1924 35 views
0 votes
0 answers
28
Design a combinational circuit that adds 1 to a 4-bit binary number, $ A _3A _2A _1A _0$. For example, if the input of the circuit is, $ A _3A _2A _1A _0$ = 1101, the output is 1110, The circuit can be designed using 4 Half Adder.
asked Apr 2, 2019 in Digital Logic ajaysoni1924 23 views
...