Latches and Flip-Flops 2 - The Gated SR Latch
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- เผยแพร่เมื่อ 22 มิ.ย. 2018
- This is the second in a series of computer science videos about latches and flip-flops. These bi-stable combinations of logic gates form the basis of computer memory, counters, shift registers, and more. In particular, this video covers the gated set-reset latch. It begins by reviewing the ungated SR latch, including the risk of making both inputs high at the same time, and then goes on to show how SR latches that were built using NOR gates, and SR latches that were built using NAND gates, can be modified to make gated SR latches. Timing diagrams are also introduced, as a means of describing the behaviour of a latch. The videos that follow this one build upon the principles covered here and include the gated D latch, edge triggered pulse latches and the master slave D type flip-flop.
What my professor fails to explain in 90 minutes, you DESTROY IT in 9, splendid work!
You're better at explaining this than my University lecturer. And I'm paying 9 grand for him!!!
9 grand my goodness, what university do you attend?
@@DeadFishRocks All UK universities have fees of 9 grand, it's ridiculous
Just some advertising for german collages:
- max college tuition about ~600€/year
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- nearly all study materials are free -> books as PDF ( download as often as you want), software like MsOffice....
- many courses are in english
- tons of sidejobs (even in your collage) all at minimum wage of 9,35€
This is all true; during a summer vacation through Austria and Germany, the student presence was enormous. Fantastic opportunity for education.
As a foreign student in Germany, i can confirm this
My professor is such a mess. Totally incomprehensible lecture. I was getting scared. Thank goodness I found this video.
Poor chap. Perhaps he should subscribe.
Top notch videos for a student just getting into these kinds of electronics. Thank you very much!
Even though i have been working as an electronics engineer, i rarely see people doing electronics videos worth watching. This is definitely one of them. "Excelent" is the least i could say!
Thank you so much :)KD
You deserve more subscribers and attention for your videos, your explanations are clear and makes the topic easier to grasp. Thank you for your effort, please keep doing videos about Computer Science & Electrical Engineering related concepts, you are really good at it (you earned a subscriber).
Love how you always give real life examples of everything. Thank you so much for these videos.
Clearly a superior lecture. The pace is perfect, content perfect, graphics perfect, organized perfectly. You left nothing unsaid or open-ended. I have learned a ton from this.
Perfectly and elegantly explained thank you. The timing diagrams are now perfectly understood.
Hey man, love your videos, you're very clear and you know what you are talking about. There are almost no channels like this one anymore, so as long as it makes you happy, please continue making them, i love them and appreciate them a lot, you've got all of my support, take care!
THIS IS PURE TEACHING ABILITY!
You have done so much effort to explain this topic well, and you did well , thank you very much .
holy hell, the explanation is so simple and easy to understand. 100 times better than my professor. Thank you so much!!!
You are most welcome :)KD
U don't know how much u've helped me to visualise the concept ..... thank you so much sir
You are very welcome. Delighted to help :)KD
very good thorough practical explanations. very much appreciated!
This video is amazing. Thank you, and I love the way you present every topic clearly and concisely.
Thank YOU :)KD
This channel is saving my life and my career
Glad to be of service :)KD
Great Video series, super clear, gives nothing for granted!!!
You're most welcome :)KD
Excellent explanation, thank you.
Dearest Computer Science Man, my kindred soul, my admiration for your every endeavour has become somewhat problematic as of late. I find sleepless nights thinking of your brilliance more of a norm now, the sweet lull of your raspy titillations besought me, I can hold the urge in no longer! I love you more than your mother or your waifu. You walk in my shadow and live in my dreams. Bless your soul, Computer Science man Dr. M. A. James and thank you for maintaining a safe space for all seekers of a finer place.
As I gaze into the crepuscular firmament and ruminate the astuteness of your promulgation, I am inclined to assume a state of acquiescence, nay, harmonious accord, as I expound my own limitless gratitude to you are yours. :)KD
Again, colourful and excellent
Well done sir, you made my day. I can stress how this has helped me, I have gone through many textbook on this topic, but it seems confusing to me, Thanks once again for this great explanations.
I love you dude, im in tears right now because you explained it so well compared to the books
You are most welcome :)KD
high quality presentation, thanks!
Thank you for the comment. :)KD
Thank you, your videos are amazing- CS Student
I love you man
your videos are superb! Many thanks
You're very welcome :)KD
One of the best videos on this topic 👏
Thank you :)KD
Thank you so much for these Videos. They helpt me so much.
This is beautiful
Thank you :)KD
Top notch and constitutional. Top notch
Very good teaching !
Thank you :)KD
Well explained. Thanks a lot.
You're welcome. :) KD
great man
more like the goated SR latch
:)KD
good and simplified.
thank you :)KD
brilliant
Thank you so much!
You are very welcome :)KD
thank you for the video now my concept is clear
Glad to help. :)KD
very good ,thank for share the knowlodge
You're welcome :)KD
You are my hero.
Thank you :)KD
sir u are a life saver
You're very welcome :)KD
Perfect video as usual!!
Its worth to add also the JK flip-flip with Pr-Cr inputs!!
Than you. I will cover the JP flip flip eventually :)KD
@@ComputerScienceLessons thanks a lot mate
Really helpful vedio
are latches constructed with NOR and NAND gates tend to remain in the latched condition due to synchronous operation feature?
Hear! Hear! to all the other comments. Totally agree!
Thank you - and thanks for commenting :)KD
Very nice video but how would you plot the graphs by interpreting the behavior of the circuit, sir?
Thanks
Thanks so much, you're better than my professor
You are most welcome :)KD
Keep going beast explain thanks you ❤
Thank you :)KD
Hello sir,
can you send me the slides or can you tell me which tool is used for drawing the components/circuits
Awesome video. So much better than UWE explaining it
Thanks. :) KD
You are a beast well explained 💯💯💯🫶🏻🫶🏻🫶🏻🫶🏻
A flip flop is like a pushbutton power switch. One button turns it on, a second button turns it off. Some boxes are made in europe and they put the buttons on the wrong side. A gate is like a power switch for the power switch.
I like it!
From my understanding when both S and R are LOW(0,0) and the GATE is ENABLED, shouldn't the S-R latch "misbehave" ?
tnx a lot
You're welcome
Hi, Great video. Tho i didn't understand why when E=0, R=1, Q still remains 1?
My professor is a fucking idiot, you are literally a god to me.
Abstraction is beautiful. Also, for college students who see this comment: what class are you taking that is prompting you to watch this material and what is your major?
When S goes high, Q goes low😅😅
and I'll be in Scotland before yee :)KD
Hi can i ask at 8:34, why doesnt Q change? I dont understand… if the R is high, then Q should reset right?
Only if E (Enable) is high. E is basically a switch which must be high or the latch will not respond to any changes in S or R. :)KD
genio
Thank you :)KD
Hi
Have a question
how to write D lacht in Vhld language?
why dont you have a video of J-k flip flop.?
You sound like james veitch when he speaks on his stand-ups :D
I'll take that as a complement :) KD
fking legend
tnx m8 :)KD
Sir can I please ask you a question regarding this type of latch but a little different. Please I have no one else to ask and I need the answer.
I emailed you the question and I'm hoping for your answer:)
WELL EXPLAINED :) ..... YOU ARE MY LAST HOPE IN THIS COURSE !!!
I'm really not understanding why at the end Q remained high despite E going Low and then R becoming 1
when you press r you reset
Can someone explain to me the truth table of this?
Truth tables for latches and flip flops can be a little odd.
This link might help.
www.allaboutcircuits.com/textbook/digital/chpt-10/the-gated-s-r-latch/
:)KD
@@ComputerScienceLessons thanks❤️
i like the yellow line animation...it helps but im still not comprehending it all....im trying..i really am but man this stuff is confusing!
I recommend that you review the basics on logic gates and truth tables first (see my playlist on logic gates). Take your time. Good luck. :)KD
@@ComputerScienceLessons i do...i have all kinds of books...and IC bible showing all the ic;s and truths tables. I have zero schooling on this. I am trying to learn it on my own.
Great and clear explanation, thanks a lot for the effort.
There is one thing: your next video in the playlist ( 3 ) is a private video and nobody is able to watch it. Is it a mistake?
If yes, would be nice if you could remove it from the playlist, so nobody gets confused.
You can check out the screenshot if you can't see what I mean: imgur.com/a/jfQekuK
I'll get rid of the private stuff immediately.
would have been better if the paths was exp;ained