Hello everyone, I’m building a 3-bit multiplier, so my result will get maximum 6 digits and I need to display the result in decimal by 7-seg LED. But i have no idea representing them, with 1 digit in decimal , I know that I can use the 74_47, but with 2 digits decimal, I can’t, I tried to figure it but I didn’t find any related topics. Thank you a lot for your help!

Hi, I have studied during my classes all the basic design steps for a combinatory logic circuit, starting from creating a truth table to the equations. but it is clear that doing this manually for each circuit and ensuring that you are correct is quite a daunting task even for small set of variables.

I wanna know how do engineers in the professional world get over that? what do they use? I heard also that IA is taking over the designing of complex chips like CPUs, can somone provide me with some insights about that?

https://preview.redd.it/v2bxvqrgh4yc1.png?width=448&format=png&auto=webp&s=c81575b5ec9b8fe1d9249e3271ab53057c6e165e

Not sure where to go with this, and no answer to guide me.

I'm a 3rd year Electronics engineering technology student, I'm confused what track should I choose to go through, I mean I am shit at all .never being good in the practical that we had , but I got grades final exam not the practical !! Cause I love to study but afraid to practice with hands in labs ,now this summer I should have a mandatory summer internship and I don't know where to go make up for the past 2 years I mean this my last opportunity before graduation ( I'm graduating in the summer of 2025)

I am studying setup and hold time in flops. Setup time is the amount of time the input has to be stable BEFORE the clock edge. Hold time is the amount of time the input has to be stable AFTER the clock edge. In modern technologies hold time is often negative, and is due to the delay of the the buffer I1 before the first transmission gate in the picture. Basically D must change BEFORE (hence the negative hold time) the clock edge such that the signal has time to propagate through the first inverter.

My question is: does this make the negative hold time equal to a positive setup time? It tells how much time before the clock edge the input D must change to be correctly sampled. Does this mean that, if we have a positive setup time and a negative hold time, the biggest between them (in absolute value) is the one that tells us the real setup time (i.e. the amount of time the input has to be stable BEFORE the clock edge)?

Thank you!

I am doing an assignment about making a calculator of 3 bits But I don't know how to set max limit to 3 bits Example: 345+678 = 1023 Which is 4 bits but only display as 999

What's even the logic behind all this?

I tried searching "input output characteristics ideal model diode", and nothing really helpful comes out.

https://imgur.com/a/6WfjTSz

I have an address sign that is supposed to light when it gets dark outside. The issue is the photodiode (assume that's what the part is) is broken and has broken off the board. I have tried connecting it manually for testing purposes, but it appears the component is somehow damaged.

I'm therefore looking for advice as to what component is the correct one to swap in for the broken one. The catch is, there are no markings or information on the packaging. I have marked up the circuit and measured voltages with the legs of the "photodiode" shorted and open. Shorted the LEDs are off and open the LEDs are on.

Any help or advice would be greatly appreciated.

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C1 = 25v 100uf

R1 = 114

R2 = 621

R3 = 4R70

BDR = MB105

Q1 = Photodiod ??

Q2 = 1AMI

Q3 = NCE60R540K

https://preview.redd.it/r1c9ipjp2prc1.jpg?width=4000&format=pjpg&auto=webp&s=e190147bda86ee2d8ee0ef25cc60e7a18f422559

https://preview.redd.it/lly0y0wp2prc1.jpg?width=1600&format=pjpg&auto=webp&s=af4987fa7dc12c7941ffa80969c3c355cc6254cc

I am aware that Logisim can generate a circuit from a truth table, but is there anyway I can generate a circuit from a state table? Any help would be appreciated. Thank you!

For my digital logic class, we have been asked to make a digital clock but make it unique. It has to have at least one thing to make it stand out. So far, I've only been able to come up with using a quartz oscillator instead of a 555 Timer IC to generate the clock signals.

So, I've come to ask for help. Your ideas would much appreciated!

Do anyone has the pdf for the book named Experiments for Digital Computer Electronics? Thanks!

https://imgur.com/gallery/NcJL3Wx The answer is 22.34V

Below is what I've tried https://imgur.com/gallery/pK5oiSf

Correct me if I'm wrong. Setup time is the time the input should be stable before the arrival of clock edge. This is mainly because of the delays, as the clock edges are not perfect and it can sample the input anywhere between the setup time and therefore we give it a margin of error. From my understanding this is why we use setup time.

But why hold time ??? What's the importance of this?! It is the time the input should be stable after the arrival of clock edge. Why is it necessary? What is the reason for this?

My syllabus is about 8086 microprocessor can I see videos on 8085??