2-Bit Multiplier Using Half Adders

Digital Electronics: 2-Bit Multiplier Using Half Adders
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[@azizalaliq8]

Thank you so much for making these. I really hated Digital electronics when my lecturer was explaining things and i always dreaded that class. Thanks to you, i can actually see the beauty in implementing these systems while understanding at the same time.

[@DrKTechSpecialist]

how we know that we have to draw first 4 add gates ?

[@sivareddy414]

@@DrKTechSpecialist 2×2 multiplxer

[@user-in4sg1nt4t]

thnku neso...i will pay u back the day i get success...!thnxx

[@vt2443]

ahem.... so what happened

[@vt2443]

@Kraken sadge indeed

[@freedomsebastian2546]

🙏

[@HEROHEMU]

​@@freedomsebastian2546by this time he had completed graduation may. Bee...

[@magnumbgmi9477]

Milli kya??

[@mysticondeflamme]

Thank you so much for explaining the concept so beautifully. Helped me a lot

[@DrKTechSpecialist]

how we know that we have to draw first 4 add gates ?

[@oggy107]

@@DrKTechSpecialist A0B0 is A0 and B0

[@mohanseditz]

It's OK

[@barsilgen120]

Thanks for your effort, we all very appreciate it

[@momentswithjireh3921]

Thank you so much, your explanations are fantanstic!

[@ghita2003able]

amazing explanation . You save us right before exams . THANK YOU !

[@philosophicalninjagenericl3793]

You have my thanks. I had no idea where to even begin with Multipliers, then this video solved my problem.

[@Tact5115]

Bro, u r lifesaver! Thank you so much

[@abizerbadwaniwala1684]

Why not using OR gate instead of XOR ??? Reply plz.....

[@kaveeshaweerakoon7032]

why use xor ??? its will be only OR ,when use xor output is going to A1B0+B0A1

[@30ashishchotani81]

@@kaveeshaweerakoon7032 you want to perform arithematic addition not logical addition, for arithematic addition u have to use an adder which has the sum give by XOR(A,B)

[@hs8493]

great explanation!!

[@awaisumar5125]

you have described all the basic components for ALU..but Divider is still missing please try to make video of divider too. and also a video of 4bit multiplier.it would really help me in design of ALU

[@sauravsinghsuryavanshi2344]

Awesome, thanks for posting ! god bless u pls upload network analysis lecture .... thanks .. #RESPECT

[@agx111]

7:19 Shouldn't this be OR gate because C1 is addition result of a1b0 and a0b1

[@shubham6523]

no!! because C=X.Y and here x = A0B1, Y = A1B0

[@soundous47764]

Thank you very much Professor, you help me

[@dheerajswaroopsm691]

Nice explanation. Please do 3x3 multiplier.

[@achaudhary5290]

Can you please upload a sequential 4 by 4 bit multiplier

[@talhaanwar4959]

we are waiting

[@TheRojo387]

Most modern computers don't even have multiplier circuits, but use a lookup table (on the CPU) to perform the operation.

[@RaviKumar-vk6ib]

thank you

[@aahyoushhh]

you are a life saver. love from nirma university❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

[@shubhamsingh1316]

You told in the previous lecture that u will explain full subtractor using nor gate but this lecture is totally different

[@sushmitanigam4979]

superb.. thanku so much

[@soniavrm0]

Dear sir..you have posted that you were hiring for your neso academy. I know it's too late as you have posted it 2 years ago. I want to ask if you have any vacancy till now? Please notify me.

[@DrKTechSpecialist]

how we know that we have to draw first 4 add gates ?

[@tanishasharma5621]

check their website

[@SaadAli-sz8hf]

Beautifully Explained !. Thank You. :D

[@abdklaib831]

nice explanation thank u

[@master_altaf_khan]

thanks

[@gauravborkar1345]

Very nice one!!

[@rajaakacemi8049]

thank you , from morocco

[@lobsterfork]

Great video!

[@venkteshyaganti9117]

Thanks

[@denebvegaaltair1146]

Nand gates are sometimes used instead of and gates (for the ones feeding the xor) to save transistors

[@DharampreetDhaliwal-qe2lb]

0

[@swatipawar6063]

It was great to watch your video...

[@PulkitMalhotra]

Please upload full substractor using NOR gate

[@CosmJJ]

That was great! Thank you.

[@omarheshamsalahel-din793]

How can we design 2x2 multiplier using Full adders??

[@Deepakkumar-zt3wm]

sir, what about signed binary multiplier? how can we design a circuit for it?

[@sandeepmehta8307]

Hats off sir🙏🙏

[@user-mj2os2gu9e]

This is awese to watch

[@shivaniverma730]

i guess some video are missing like in this sequence " REALIZING FULL SUBTRACTOR USING NOR GATE ONLY" is missing.

[@dilibanb2226]

Can we cascade this 2 bit multiplier so as to get 4 bit multiplier, as we do in full adder circuit?

[@sushantkumar3121]

You said in a previous lecture while drawing a k map the maximum combination of 0 or 1is taken but in a question you can take least no of 1 why.

[@ainmiky4620]

what made you use the A1, A0, and B1, B0? What is we are multiplying by 4 bits? will it be A1, A0, A0, A0?

[@ainmiky4620]

what happens if I have (A3B0) +(C2)+(A2B1) ..... will the next column have two carries?becasue A3B0 + A2B1 will have a carry of C1....but what if there was another carry previiusly from the left column that is C1?

[@kundurupavan1429]

IN CASE OF HALF ADDER YOU TOLD THAT WE DON'T TAKE CARRY FROM PREVIOUS SUM BUT HERE YOU HAVE TAKEN CARRY FROM PREVIOUS SUM? PLEASE SOMEONE RESPOND

[@yeluripavan2126]

Nice video, but you should have told that A.B=AxB when A & B are single bits

[@umagunturi7442]

please upload 3bit multipler as well as 4 bit multiplier using half adders.

[@DrKTechSpecialist]

how we know that we have to draw first 4 add gates ?

[@sangramsarkar310]

cant i use or gate instead of xor gate ??

[@psps4754]

P1 and P2 can be implemented using OR gate instead of XOR gate?????

[@mdrizwanansari6224]

Carry C1=C2=P3. We can avoid last AND gate for P3

[@kshitijkulshrestha2164]

thank you so mch for the help..:)

[@zishanali2944]

wow. it helped me too much

[@DrKTechSpecialist]

how we know that we have to draw first 4 add gates ?

[@PIYUSHChamp]

Can we use simply OR gate instead of xor gate?

[@russotragik]

Nope, the truth table of OR and XOR gates are different. OR: b0 b1 | Y 0 0 | 0 0 1 | 1 1 0 | 1 1 1 | 1 XOR: b0 b1 | Y 0 0 | 0 0 1 | 1 1 0 | 1 1 1 | 0 So, your best approach to XOR by using Karnaugh map is: [(NOT b0 AND b1) OR (b0 AND NOT b1)]

[@Thinkingsoulz]

why are u using xor gate to find p1 while u need or operation only

[@viveksehwag1163]

fasil pm there for p1 we need half adder in doing p1 operation...in half adder we use xor gate for sum

[@shubhamnayak9369]

ORing is not addition. XOR performs addition

[@AnoNymous-po5sx]

Because in OR gate, 1+1 gives one and that's not addition operation. It may seem at first sight that we can simply use OR gate though that's not the case. We have to use XOR. It's called arithmetic gate for a reason.☺️

[@roy_ashutosh]

at 6:36 why can't we use or gate to add the numbers ?? By the example also if we put or gate instead of x-or we get the same answer(8:45 minute)

[@attackontitan9834]

At first I thought same like you but actually we are thinking it because In OR operation we cannot tell the carry...But in case of Half Adder we can...

[@m7mdxo438]

thx

[@santhoshm7584]

1:08. I heard it as the stupid multiplier instead of 2 bit multiplier.

[@TurtleSergio42]

What changes in the circuit if I need it for ternary numbers?

[@pullepujaswanth5035]

please upload about 4*4 combinational multiplier

[@madhuyaramala]

Super sir

[@alyalsayed6637]

awesome

[@miguelbahena2603]

god bless you!

[@moulanishashaik5284]

Can u pls upload multibit substraction

[@tinotendageorgesithole5640]

can you do a two * 3 BIT multiplier Sir

[@sunilkumarsegu5343]

Can u pls help us in designing a two bit multiplier using decoder

[@AnjuKumari-ky1eo]

It will help in gate ?

[@rjstyles3687]

Is this same as 2 bit by 2 bit multiplier

[@howtoquestions3274]

If i have a 3 bit number multiplicat 3 bit number how can i solve it in 4 bit adder?

[@trishashukla8454]

I have one doubt half adder is used to add 1 bit no.s only and it doesn't take carry and here we are adding 2 bit no. Using half adder and also we are taking carry I m really very confused 🤔

[@prajwal4245]

How can Half adder take carry from previous stage???

[@CSKNOWLEDGEINDIA]

implement 2bit*2bit multiplier using 4*1 multiplexer plz

[@user-sw7cm4sz9z]

دمت گرم❤

[@umairkhan-vj9yy]

could've just used half adder instead of using other logical gates.

[@michaelaalquino7878]

Sir can you make a truth table for this? Please, thanks

[@DrKTechSpecialist]

how you know that we have to draw first 4 add gates ? any one please

[@Farwa60]

won't p1 get a carry from p0?

[@rajesha5812]

Same question for me too

[@syedafzal2062]

Where is the realization of full sub. With nor gate???

[@thetotal9709]

Please , can you provide a video on floating point multiplier, used in FPUs

[@jyotipanpatil7367]

Please provide me the vhdl code for FIR filter design using vedic multiplier.... Please please...🙏🙏🙏🙏🙏

[@Mmm232-55]

can we make the same by using IC's?? and how!?

[@AdnanKhan-vi1qo]

Why not , make truth table for multiplier and multiplicand and multiplied answer then using k map you can easily make multipllier using ic's only

[@caratinygirl]

How OR became XOR ... i.e; how a1b0 plus a0b1 became a1b0 XOR a0b1 ???

[@Ankit-we8ym]

sir I am not finding full subtractor using nor gate only, where is it?

[@akashrathore5699]

That's too complicated, and thus there is no need

[@ibzih]

thicc arrow

[@nasernp7881]

How to design 1 bit multiplier

[@leonard-riccardowecke2773]

good video but i am missing the flags :/

[@arka6501]

upload some lecture of OS ....its relay help us

[@smnk1073]

Awsome

[@JoshMn]

why is half adder used and not full adder?

[@alphasatari]

Josh Mn we have to add only two digits and get carry output so we’re using half adder we need two terminals one for AB and other for C. In full adder we consider three digits (A,B,C) where C is previous carry. So we can use full adder by keeping C as zero.

[@DrKTechSpecialist]

@@alphasatari how we know that we have to draw first 4 add gates ?

[@shivanisharma-kz9pm]

Anyone.....Pls tell me the difference btwn multiplier and multiplexer......

[@marquism685]

multi flex selects input

[@skandakaranth2748]

why not use truth table and k map would be easier !!1

[@manaserialcom]

3+2 =6not it's 5

[@sufeesahin5922]

your lectures are very good, sir can i get your email id please?

[@DrKTechSpecialist]

how we know that we have to draw first 4 add gates ?

[@MIA-gr6lf]

I want education Not ad Ad u give to business people

[@fish7455]

Why did you not multiply A1B0 by 2?