At 7:23 I think the truth table which he has written is incorrect, he has written the values in reverse order. For eg for D1=1 we should giving the value from bottom C=0;B=0 and A=1, but he has done it in reverse order. Correct me if iam wrong.
A is MSB and C is the LSB. And the same is also shown in the truth table. That is why when C is 1 and A = B =0, then D1 =1. I hope, it will clear your doubt.
The input names for each decoder are according to their individual inputs. That is why the input to each 3 to 8 decoder is from A0 to A2 followed by Enable input.
00 - Memory-1, 01- Memory -2, 10- Memory-3 and 11- Memory 4. Therefore, memory 3 will get selected. The memory names (1 ,2 ,3 and 4) and their connection to decoder are not decimal equivalent of A9 and A8 bits. I hope, it will clear your doubt.
Since we are constructing 5 to 32 decoder, so it will have 5 inputs. ( A4, A3, A2,A1, A0). A0, A1 and A2 inputs of the decoder are given to four 3x8 decoder, while A3 and A4 are given to fifth 3 x 8 decoder to select any one of them. Now here since we are not using the A2 input of the 5th decoder(because we are using it as 2x 4 decoder), so it is connected to 0. I hope, it will clear your doubt.
@@ALLABOUTELECTRONICS I understand that part already. I am just confused on how I will draw the truth table and logic circuit to the 4 to 16 decoder using 3 to 8 decoder
@@Sire_Presh You need to extend the truth table of 3 to 8 decoder. Similar to 3 to 8 decoder, in case of 4 to 16 decoder, you will have 16 outputs. About the circuit diagram, as I have shown in the schematic, you will require to draw two 3 to 8 decoder circuits and connect the pins according to the schematic. Just try it once you will get it.
@@ALLABOUTELECTRONICS Thank you very much. I've got it. I even attempted 5 to 32 decoder using 3 to 8 decoder and 2 to 4 decoder for the enable input. Did them successfully
In case of the decoder, based on the input code to the decoder, specific output will become high. For example, if the input code is 100, then 4th output line will become high. In case of the Demultiplexer, the multiplexed data is the input. Based on the selection inputs, the input data will appear at the specific output line. In Demultiplexer video, I have explained that how decoder can be used as a Demultiplexer. Here is the link: ruclips.net/video/eeWHM3zzK3M/видео.html&si=0B2BJcoQycOsZR_H
Enable input is additional input to any digital circuit or IC, which activates or enables that IC or digital circuit.When this enable input is high then only, the IC will respond to the change in the inputs. If enable input is active high, and if is kept low then irrespective of change in input, it won't reflect at the output side. I hope, it will clear your doubt.
![2:4 Decoder [Detailed Explanation with logic expression and logic circuit diagram]](/img/1.gif)
You have no idea how helpful yor lessons are. I passed 'Introduction to Digital Systems' part thanks to you. Thank you
hope i would pass my computer systems 🥺🥺🥺
foundation of digital design
@@Goku2005whaa K̶y̶s̶ thank you for the correction ^^
Application:
1. Code conversion
2. Address decoding
3. Generating of control signals
4. Implementing different logic circuits
Covered all the concepts in one video...Very Thanks sir for this amazing lecture!!!
Hello sir, your way of explanation and demonstration is Very much understandable for us, thank you sir, 🙂🙏
Sir, could you please make a series on COMPUTER ORGANIZATION for BSC PHYSICS students?
Best explanation 👌🏻👍🏻
Clear explanation covering all the topics!
your video was extremely helpful and made it very easy for me to understand, thank you sir!
18:20
the circuit we are discussing is parity checker not generator.
Thankyou so much for this detailed and good explanation. Watching your video for my exams! Slay.
Great work!! I believe it has taken tons of time to create such content.
Thanks machan. Happy Diwali to you. You deserve it
Great video, so helpful and organised
Superb and crisp explaination.
Thanks a ton sir :) You saved me!
My DLD exam is after 2 hours I wish I had discovered your channel before 🥺
Thank you so much it helped a lot sir🎉
Thank you very much this tutorial has been of great help
Supervd Way of explanation ...
love you dude...helped me lot
Thank you so much🎉❤
14:41 how about if A3 and A4 are both high ?
When both A3 and A4 are high, then the last decoder will get selected. ( the fourth one)
@@ALLABOUTELECTRONICS I get it now thank you sir
very helpful video, thank you !!
At 7:23 I think the truth table which he has written is incorrect, he has written the values in reverse order. For eg for D1=1 we should giving the value from bottom C=0;B=0 and A=1, but he has done it in reverse order. Correct me if iam wrong.
A is MSB and C is the LSB. And the same is also shown in the truth table. That is why when C is 1 and A = B =0, then D1 =1. I hope, it will clear your doubt.
@@ALLABOUTELECTRONICS understood, thanks for the reply
wow! bro. Thank You so much for this :)
Great video
Well explained ❤👏
thank you
we really appreciate you
life saver!
Superb video
4:58 so, this is similar to Demultiplexer (DEMUX) right?
14:03 the image is wrong ig. the inputs names are in incorrect order
The input names for each decoder are according to their individual inputs. That is why the input to each 3 to 8 decoder is from A0 to A2 followed by Enable input.
It would be very helpful if you provide the written format like in pdf form or such!...please do the needful!😊
I am the random liker , you have got a like in your comment
4:10 Shouldn't the memory 2 become high?
00 - Memory-1, 01- Memory -2, 10- Memory-3 and 11- Memory 4.
Therefore, memory 3 will get selected. The memory names (1 ,2 ,3 and 4) and their connection to decoder are not decimal equivalent of A9 and A8 bits.
I hope, it will clear your doubt.
V. Nice 👌👌 👌 👍
Can you please show implementation of Boolean functions using decoder?
👍 well done
In 16:27 why A2=0? I cannot understand this sir. Please explain it😊
Since we are constructing 5 to 32 decoder, so it will have 5 inputs. ( A4, A3, A2,A1, A0). A0, A1 and A2 inputs of the decoder are given to four 3x8 decoder, while A3 and A4 are given to fifth 3 x 8 decoder to select any one of them. Now here since we are not using the A2 input of the 5th decoder(because we are using it as 2x 4 decoder), so it is connected to 0. I hope, it will clear your doubt.
Is there anywhere I can send you an image that I need decoding for a new update on a game I'm struggling?
For
n-variable function implementation using decoder, what should be the size of the decoder?
For n-variable function, we require n to 2^n decoder.
For example, for 3 variable function, we require 3 to 8 decoder.
Great video and well explained.
In 13:14 please how can I draw the truth table and logic circuit to the decoders?
The truth table of 3 to 8 decoder is shown at 6:04. And the logic circuit is shown at 6:09.
@@ALLABOUTELECTRONICS I understand that part already. I am just confused on how I will draw the truth table and logic circuit to the 4 to 16 decoder using 3 to 8 decoder
@@Sire_Presh You need to extend the truth table of 3 to 8 decoder. Similar to 3 to 8 decoder, in case of 4 to 16 decoder, you will have 16 outputs. About the circuit diagram, as I have shown in the schematic, you will require to draw two 3 to 8 decoder circuits and connect the pins according to the schematic. Just try it once you will get it.
@@ALLABOUTELECTRONICS Thank you very much. I've got it. I even attempted 5 to 32 decoder using 3 to 8 decoder and 2 to 4 decoder for the enable input. Did them successfully
7:00 confused here
Is it possible to make higher order decoders if the lower order decoders don't have an enable input?
No, you need to have some enable input or chip select input to select the specific decoder. Then only, this scheme will work.
@@ALLABOUTELECTRONICS Thanks!
whats the difference between a decoder and a de multiplexer
In case of the decoder, based on the input code to the decoder, specific output will become high. For example, if the input code is 100, then 4th output line will become high.
In case of the Demultiplexer, the multiplexed data is the input. Based on the selection inputs, the input data will appear at the specific output line.
In Demultiplexer video, I have explained that how decoder can be used as a Demultiplexer.
Here is the link: ruclips.net/video/eeWHM3zzK3M/видео.html&si=0B2BJcoQycOsZR_H
10:09 will watch later
what is enable input??
Enable input is additional input to any digital circuit or IC, which activates or enables that IC or digital circuit.When this enable input is high then only, the IC will respond to the change in the inputs. If enable input is active high, and if is kept low then irrespective of change in input, it won't reflect at the output side. I hope, it will clear your doubt.
@@ALLABOUTELECTRONICS Thank bro Your video helps a lot
This looks helpful with the animations but so hard to understand what he is saying if your not Hindi or whatever
Because most of the students watching from tamilnadu bro....🙃
@@srikumar3980 بیا پایین دزد نان
@@srikumar3980what not really lmao?
You think Tamil Nadu is the only place where people study electronics?
He is speaking English only bro wtf do you even mean?
thanks sir
Bestttt
Understood.
thank uuuuu
CHICLAYO PERU 🇵🇪 💪 💪
perfect
Sir please hindi english mixx padhaiye
Thank you for your help
Sir hindi main hota to jayada acha samaj main aata
heyyy
7/10
please add subtitle because your accent is very bad, I cannot understand what you are saying. Develop your accent or you do not have to speak english.
Subtitles are already been added. You may turn it on in the video settings.
abey shut ur as* up man. sir's accent is alright and his voice is soothing. get some good quality earphones blud.
Covered all the concepts in one video...Very Thanks sir for this amazing lecture!!!
Superb video