4-bit Adder and Subtractor Circuit Explained

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In this video, the 4-bit adder/ subtractor circuit is explained in detail.

The following topics are covered in the video:

0:00 Introduction
0:30 4-bit Subtractor Circuit (using Full Subtractors)
3:23 4-bit Subtraction using adder circuit
9:29 4-bit Adder / Subtractor circuit

For more information, check these videos:

1) Half Adder and Full adder

2) Ripple Carry Adder

3) Half Subtractor and Full Subtractor

4-bit Adder / Subtractor Circuit:
In this video, the circuit for the 4-bit adder and subtractor is explained. By watching this video, you will learn how to design a logic circuit that can perform both addition and subtraction.

This video will be helpful to all the students of science and engineering in understanding the design of a 4-bit adder/ subtractor circuit.

#ALLABOUTELECTRONICS
#DigitalElectronics

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For more information, check these related videos on Adder and Subtractor:

1) Half Adder and Full adder

2) Ripple Carry Adder

3) Half Subtractor and Full Subtractor

ALLABOUTELECTRONICS
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you could explain in 20 minutes what my professor couldn't in 2 hours. THANK YOU

MrLinker
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The slow build up to the actual topic is just awesome

srinjandutta
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00:11 Designing a 4-bit subtractor circuit
02:57 Performing subtraction using an adder circuit with 2's complement
05:28 Performing subtraction using the adder circuit
08:01 Performing subtraction using a modified adder circuit.
10:42 XOR gate can be used for both addition and subtraction
13:23 Binary addition and subtraction using XOR gates and adder circuit
15:59 Performing subtraction using 2's complement form
18:21 The adder circuit can be used for addition and subtraction

shashankjha
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this 20 min. video literary saved my day !!.. Thank you very much 🤩

waasanime
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It is just like a private lesson, a teacher teaches me topics I have no idea about detaily, thank you very much for saving me:))And also thanx for the subtitles sometimes because of the accent I cannot understand some parts and other than that when i speed up the video thanks to the subtitles i do not miss anything

eda
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This is the best explaination so far i have seen, thanks sir.

gopikrishnanm
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your way of explanation is really awesome . It is very clear content to understand the concept . Thank you.

deepthidonthu
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sir your inglish is very gut. i want to take classes from you. i have a dream of securing full marks in inglish. when you say "The output of xor" hits different.❤

zohaib
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makasih sangat jelas dan sangat memabntu saya dalam mengerjakan LK Eldas terlebih lagi modul m-11

ahmadfahryan
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May God nature both everything you touch and involve yourself, Good health too

jonathanbanda
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Good explaination ..! but while teaching the lecture please kindly use cursor mark.

Srinivas-szfn
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Literally the best video on this topic found so far 👍🔥

rush_holic
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Best video on this topic. Thanks a lot.

book
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Your video is really helped me. Thanks a lot

hoci
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Hi, I have tried to make the same the circuit on the circuit verse but upon doing the addition of 1111 and 1000 bits the carry out of the second 4bit adder is not giving the 1 bit as the output carry, so, do we need to need to get the output of the carry or borrow bit from the 1st 4bit adder module ?

ragzzz
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Today was my end sem exam nd i got this question in it

Happymind
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I have a question, why does the 2's complement checker does not work when you add two negative numbers? Ex. -2-1 = 1110 + 1111 = 11101. So the most significant bit, which is 1, is inverted and then it goes through a AND gate with the CTR value, but the result ends up being 0 (0 * 1) . Even though the result is in 2's complement form. PLS HELP, I have a project related to this. Thank you!

antoral
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Great explanation sir.
What it the output from the And gate is 0, since A>B.
We don't want it to do the 2's complement of B again and then add since A>B. How would the system know it's to stop if A>B.

uyioduware