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How could you produce 3 input AND gate if you have only 2 input AND gate available?
Wiki User
2010-07-28 03:52:02
output is feedback in input
Related Questions
Asked in Electronics Engineering
How could you produce 3 input OR gate if you have only 2 input OR gate available?
To produce a 3-input OR gate when only 2-input OR gates are
available: Use 3 OR gates Inputs to Gate A are input 1 and input 2
Input to Gate B is input 3 (if 2 inputs are necessary, include
input 3 and FALSE) Inputs to Gate C are outputs from Gate 1 and
Gate 2 === If input 1 OR 2 is TRUE, output of Gate A will be TRUE.
If input 3 is TRUE, output of Gate B will be TRUE. If output of
Gate A OR Gate B is TRUE, output from Gate C will be TRUE. That is
if one ore more of Inputs 1, 2 or 3 is TRUE, the result will be
TRUE. Otherwise, output of Gate C will be FALSE.
Asked in Cable Internet, Electronics Engineering
What is the flag input of AND gate?
To produce a 3-input OR gate when only 2-input OR gates are
available: Use 3 OR gates Inputs to Gate A are input 1 and input 2
Input to Gate B is input 3 (if 2 inputs are necessary, include
input...
Asked in Electronics Engineering
What is the ic number of and gate?
For two input AND gate it is 7408
for three input AND gate it is 7411
Asked in Cable Internet, Electronics Engineering
How can you make a three input OR gate with a two input OR gate?
connect the output of two input or gate with the two input or
gate1.one input of or gate no.1 is output of or gate and another
input is taken and hence final output of or gate no1 is formed
three input or gate.
i.e
let o/p of or gate is A+B
which is one i/p of gate no1. and let another i/p is C.
and final i/p is Y=(A+B)+C=A+B+C
Asked in Physics, Electronics Engineering, Engineering
What is the pin configuration of ic 7408?
this shows you everything you need about them
Pin Number Description
1 A Input Gate 1
2 B Input Gate 1
3 Y Output Gate 1
4 A Input Gate 2
5 B Input Gate 2
6 Y Output Gate 2
7 Ground
8 Y Output Gate 3
9 B Input Gate 3
10 A Input Gate 3
11 Y Output Gate 4
12 B Input Gate 4
13 A Input Gate 4
14 Positive Supply
Asked in Consumer Electronics, Cable Internet, Electronics Engineering
Which input combination will produce logic 1 at the output of a 4-input NOR gate?
All inputs hae to be low i.e 0.
Asked in Science, Cable Internet, Electronics Engineering
How do you get not gate from nor gate?
To get a not gate (or inverter) from nor gate, tie the two input
together. If fan-in is a concern, tie one input to logic false and
drive the other input.
Asked in Cable Internet, Electronics Engineering
How do you draw a diagram using two- two input AND gates to make a three input AND gate?
You would connect the output of the first AND gate to one input
of the second AND gate. You are left with 2 inputs on the first AND
gate and 1 input on the second AND gate. The final output is from
the second AND gate.
Asked in Electronics
What is a not gate in electronics?
A not gate is a logical gate which inverts a digital signal. If
the input to a not gate is 1, then the output will be 0. If the
input is 0, then the output will be 1.
Asked in Consumer Electronics, Cable Internet, Electronics Engineering
Truth table for 3 input NAND gate?
Truth table for a 3 input
NAND gate?
Asked in Consumer Electronics, Cable Internet, Electronics Engineering, Bill Gates
How does a not gate work?
A "Not" gate is also called a "hex inverter". It's a binary
logic gate that inverts the input. If the input is "1", the output
will be "0".
Asked in Electronics Engineering
What is a four input and gate?
A four input and gate is a logic gate with four inputs. The
output is true only when all four inputs are true.
Asked in Cable Internet, Electronics Engineering
Can an OR gate have one input?
Technically, an OR gate could function with only one input, in
which case it would perform the same as if it was not present; when
its only input goes high, it would go high, and when the input goes
low, it would go low. As a practical matter, the only useful
purpose of a single input OR gate would be to have it act as a
simple diode, which would be more efficient to simply have a diode
in its place.
Asked in Electronics Engineering
How could you produce 3 input XOR gate if you have only 2 input XOR gate available?
you can take 2 input or gate first 2inputs and output of that
gate should be given as the input for next OR gate with 3rd
input
Above solution will not work if all 3 inputs are True. I believe
the question requires a configuration of XOR gates that will
produce a True result if EXACTLY one out of three inputs is
True.
Specifically, if Inputs A and B are both True, the first XOR
Gate output will be False. If Input C is also True, the second XOR
Gate output will be True, yielding an overall TRUE result. This is
not the desired result.
I don't know the correct answer, but I'm pretty sure the first
answer is not complete.
Truth table for 3 input XOR gate
INPUTS OUTPUTS
ABC X
000 0
001 1
010 1
011 0
100 1
101 0
110 0
111 1
From the table we can use 2 XOR gates to get 3 inputs XOR with
the same result.
1st XOR Gate
AB X
00 0
00 0
01 1
01 1
10 1
10 1
11 0
11 0
2nd XOR Gate
XC Y
00 0
01 1
10 1
11 0
10 1
11 0
00 0
01 1
I was also confuse for when 3 inputs are 111, but I'm now sure
from few references saying that 111 input will produce an output of
1.
Asked in Cable Internet, Electronics Engineering
How do you construct a 4 input AND gate by using 2 input AND and OR gate?
Use 2 AND gates to input the 4 i/p signals and then use the
outputs of these 2 AND gates in the 3rd AND gate to get the desired
output.
Asked in Electronics Engineering, Computer Terminology
What gate gives the output1 when any of the input is 1?
OR gate gives the output 1 whenever one of its input is 1.
Asked in Electronics Engineering, Electrical Engineering
The input gate current of a FET is?
Gate current is denote by Ig
Asked in Electronics Engineering
How do you design a NOT gate using XOR gate?
tie one input of the XOR gate high.
Asked in Cable Internet, Electronics Engineering
Is a buffer amplifier equivalent to a a one input And gate or or a one input OR gate?
No. In the general case, a buffer amplifier is an analog device,
but an AND or an OR gate is a digital device. Even in the specific
case of a digital buffer amplifier, its still not the same because
the digital buffer amplifier has more power available in its output
circuit, giving it a higher fanout than just an ordinary AND or OR
gate.
Asked in Electronics Engineering
How can a NOT gate be realized using a NAND gate?
Short the two inputs of the NAND gate, so that only one input is
needed. Now apply the desired input ie '0' or '1'. The output will
be of a NOT gate.
Asked in Electronics Engineering, Electrical Engineering
What is the boolean expression for XOR gate?
For 2-input EX-OR gate, if one input is A, the
other input is B, and the output is Y. Then the
Boolean expression for EX-OR (XOR) function (gate) is
Y=A⊕B The output Y is true if
either input A or if input B is true, but not
both.
Y= ( (A and NOT B) or (NOT A and B) ) ;
Asked in Cable Internet, Electronics Engineering, Bill Gates
How exclusive or gate is converted in not gate?
one terminal of the ex-or gate should be connected to a high
input(1 or 5V). the other terminal is used as the input
terminal,since not gate has only one input.when we give a high to
this input, now the inputs of exor gate are 1 & 1.so output is
0.when we give a low to the input , then the inputs of ex-or gate
are 0 and 1, output is 1. Hence it works as a controlled
inverter.
Asked in Cable Internet, Electronics Engineering
How many minimum NOR gates is required to implement NAND gate?
A 2 input NAND gate requires 4 NOR gates.
A 3 input NAND gate requires 5 NOR gates.
A 4 input NAND gate requires 6 NOR gates.
etc.
Asked in Electronics Engineering
How can you make a three input AND gate with a two input AND gate?
you will need 2 two input AND gates to do this. connect the
output of the first to one input of the second. you now have a
three input AND gate.
just remember when calculating timing that 2 inputs of the 3
have twice the gate delay of the remaining input, thus the output
will have skew and possibly glitches. if timing is critical or
glitching can't be tolerated it may be best to use an actual three
input AND instead of kludging one.
Asked in Circuits
Describe the circuit implementation of function xy plus yz?
-- Take two 2-input AND gates.
-- Attach 'y' to one input of one gate, and jumper that point
to
one input of the other gate.
-- Attach 'x' to the free input of one gate, and attach 'z' to
the
free input of the other gate.
-- Attach the outputs of both gates to the inputs of a single OR
gate.
-- The output of the OR gate is the Boolean function ( XY + YZ
).
=======================================
Better implementation (faster, cheaper, easier to build,
less hardware to fail):
-- Attach 'x' and 'z' to the inputs of a single OR gate.
-- Attach 'y' and the output of the OR gate to the two inputs of
a single AND gate.
-- The output of the AND gate is the same Boolean function.