How transistor works as an AND gate?
By using RTL (resistor transistor logic) we have designed the AND gate by two transistors and some resistor. The transistors are connected in series and their bases are used as input. The base of both the transistors act like inputs and one of the emitter of either of the transistors is used to derive the output.
Which transistor is used in AND gate?
The device can be used as a switch and also as an amplifier to change the values or control the passing of an electrical signal. For building an AND logic gate using a transistor we would be using BJT transistors which can be further classified into two types: PNP and NPN – Bipolar Junction Transistors.
How many transistors do you require to design an AND gate?
A NOR gate is 1 transistor per input. An AND gate is basically a NAND gate + a NOT gate, so it takes 1 transistor more than a NAND gate. Same for OR vs NOR. An XOR gate is built from multiple other gates, typically about ~4.
How do you make an AND gate?
This is the circuit diagram for a BJT where we have a base a collector and emitter see other videos I’m using or I’ve put up in order to find out about the BJT.
WHAT IS AND gate with example?
An AND gate is a digital logic gate with two or more inputs and one output that performs logical conjunction. The output of an AND gate is true only when all of the inputs are true. If one or more of an AND gate’s inputs are false, then the output of the AND gate is false.
What is the output of AND gate?
The AND gate gives an output as 1 only when both of its input signals are 1 but gives an output as 0 when both or either of the input signals is 0. In Boolean algebra, output of AND gate is written as Y=A.
How logic gates are used in microprocessor?
The fundamental building blocks of any microprocessor are gates. Gates are collections of transistors that electrically mimic a particular logic function. For example, a 2-input AND gate will take two input signals and output a 1 only if the two inputs are both 1s.
What are the 3 types of logic gates?
All digital systems can be constructed by only three basic logic gates. These basic gates are called the AND gate, the OR gate, and the NOT gate. Some textbooks also include the NAND gate, the NOR gate and the EOR gate as the members of the family of basic logic gates.
How many transistors are there in AND gate?
A two input AND gate has a minimum of 6 transistors.
How many transistors are in a 3 input AND gate?
An alternative design for the 3-input NAND gate uses CMOS transistors as building blocks, as shown in Figure 4.2. This circuit needs only 6 transistors, and is symmetric w.r.t. its inputs.
What is the difference between AND gate and OR gate?
A logic gate that is defined to execute the logical addition of binary input is known as the OR Gate. The OR Gate gives output 1 when either input is 1, otherwise, the output is 0. A plus(+) is show the OR operation The OR Gate is an electronic circuit that gives an output(1) if one or more of its input is high.
Can an AND gate have 3 inputs?
Like the AND gate, the OR function can have any number of individual inputs. However, commercial available OR gates are available in 2, 3, or 4 inputs types. Additional inputs will require gates to be cascaded together for example.
What is the logic equation for an AND gate?
AND – GATE
Logic expression: Input variable are A, B and the output variable is Y, then the logic expression for OR gate is Y = A.B.
Where is AND gate used?
The AND gate is used for data transmission control in digital electronics. AND gate allows or disallows the transmission of data through a channel.
WHAT IS AND gate example?
Its output is “true” if both inputs are “false.” Otherwise, the output is “false.” The XNOR (exclusive-NOR) gate is a combination XOR gate followed by an inverter. Its output is “true” if the inputs are the same, and “false” if the inputs are different.
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Basic logic gates.
| Input 1 | Input 2 | Output |
|---|---|---|
| 1 | ||
| 1 | 1 | 1 |
How many logic gates are in a microprocessor?
There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR.
How many transistors are in a microprocessor?
The 3rd Generation Intel® Core™ processor — quad core, contains 1.48 billion transistors. If transistors were people, Intel’s chip has more transistors than the population of China at approximately 1.3 billion people.
What are 7 logic gates?
There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR. The AND gate is so named because, if 0 is called “false” and 1 is called “true,” the gate acts in the same way as the logical “and” operator. The following illustration and table show the circuit symbol and logic combinations for an AND gate.
What are the 2 types of logic circuits?
There are two basic types of logic circuitry: combinational circuitry and state circuitry. Combinational circuitry behaves like a simple function. The output of combinational circuitry depends only on the current values of its input. State circuitry behaves more like an object method.
What is an AND gate made of?
“In a computer, a gate controls the flow of electric current through a circuit. The gate consists of transistors; the transistors are selected by the chip designer from two basic types (PMOS and NMOS transistors) that are found in the ubiquitous CMOS (complementary metal-oxide semiconductor) technology.
How many transistors are there in and gate?
How many transistors does a 2 input AND gate have?
A 2-input NAND gate requires 4 transistors.
Why is OR gate better than AND gate?
AND gate gives a true output only when both input are true whereas the OR gate gives an output of true if at least one of the input is true. AND gate provides the product of two binary value as its output.
How does 3-input AND gate work?
As the inputs are multiplied with each other to generate the output, the output of a three-input AND gate is logic high when three of the inputs are at logic high i,e ‘1’. If any one or two of the inputs is “LOW” or at logic zero then the output is also logic zero irrespective of the other inputs.