How to Program / Manufacture RAM?

[iLostMyXbox21]

i am looking to build RAM, where would i start? what would i need? what do i need to learn? i am not making anything complex (yet) it will just be a VERY small stick (pribably less than a mb of ram to start) but I am planning in building off of it soon also, what website would actullay teach me how to do that kind of thing

[Jurrunio]

1. You need some memory dies. Cant buy those seperate or in bulk, you can only find other sticks and remove their soldering for them.

 

2. PCB. Good luck making traces yourself

[TheKDub]

You'd have to buy memory chips and a controller, maybe more stuff, then wire it all together.

[iLostMyXbox21]

3 minutes ago, Jurrunio said:

1. You need some memory dies. Cant buy those seperate or in bulk, you can only find other sticks and remove their soldering for them.

 

2. PCB. Good luck making traces yourself

pcb.. as in the chemical pcb?

[iLostMyXbox21]

2 minutes ago, TheKDub said:

You'd have to buy memory chips and a controller, maybe more stuff, then wire it all together.

how much would i spend on the memory chips?

[TheKDub]

Just now, iLostMyXbox21 said:

how much would i spend on the memory chips?

You could get a 256Kb (32KB) SRAM chip for $1.16USD. Very low capacity ones like that generally aren't that expensive.

 

I'm not sure for about how much a controller for it would cost, but I'd imagine it'd be fairly cheap as well.

[Jurrunio]

3 minutes ago, iLostMyXbox21 said:

pcb.. as in the chemical pcb?

the board thatr holds and connects components like the memory dies to the motherboard

[TheKDub]

5 minutes ago, iLostMyXbox21 said:

pcb.. as in the chemical pcb?

Printed Circuit Board.

[Epiclol86]

11 minutes ago, Jurrunio said:

1. You need some memory dies. Cant buy those seperate or in bulk, you can only find other sticks and remove their soldering for them.

 

2. PCB. Good luck making traces yourself

if you know how to you can always order a printed pcb from a number of places around the web.

[iLostMyXbox21]

8 minutes ago, TheKDub said:

Printed Circuit Board.

ahh, i see

[iLostMyXbox21]

11 minutes ago, TheKDub said:

You could get a 256Kb (32KB) SRAM chip for $1.16USD. Very low capacity ones like that generally aren't that expensive.

 

I'm not sure for about how much a controller for it would cost, but I'd imagine it'd be fairly cheap as well.

but i do not wanna buy it, i want to make it. 

[TheKDub]

4 minutes ago, iLostMyXbox21 said:

but i do not wanna buy it, i want to make it. 

This is about the best you'll get then:

 

https://www.instructables.com/id/DIY-SRAM-The-RAM-in-your-Microcontroller/

 

Even then you're going to have to buy stuff.

[dcgreen2k]

7 minutes ago, iLostMyXbox21 said:

but i do not wanna buy it, i want to make it. 

You would need to get your own silicon and extremely specialized tools just to make the chip itself. In other words, it's impossible if you don't already work at or control an entire memory manufacturing plant.

 

Not to mention the fact that you need to program whatever device you're using to actually use the memory, which also requires a high level of knowledge of how the darn thing works.

[iLostMyXbox21]

3 minutes ago, TheKDub said:

This is about the best you'll get then:

 

https://www.instructables.com/id/DIY-SRAM-The-RAM-in-your-Microcontroller/

 

Even then you're going to have to buy stuff.

im okay with buying some stuff, i just dont wanna buy the whole thing. (experiment) and thanks for the link, i will check it out

[iLostMyXbox21]

1 minute ago, thegreengamers said:

You would need to get your own silicon and extremely specialized tools just to make the chip itself. In other words, it's impossible if you don't already work at or control an entire memory manufacturing plant.

ah, i guess this is where im gonna have to buy things

[iLostMyXbox21]

5 minutes ago, TheKDub said:

This is about the best you'll get then:

 

https://www.instructables.com/id/DIY-SRAM-The-RAM-in-your-Microcontroller/

 

Even then you're going to have to buy stuff.

okay i resd the title in the site and this is exactly what i wanted, thanks

[dcgreen2k]

1 minute ago, iLostMyXbox21 said:

okay i resd the title in the site and this is exactly what i wanted, thanks

Eh, you could have told us that you wanted to make this kind of RAM instead of the super complicated kind that goes in a regular PC...

[iLostMyXbox21]

Just now, thegreengamers said:

Eh, you could have told us that you wanted to make this kind of RAM instead of the super complicated kind that goes in a regular PC...

technically, it is not 100% what i wanted (it is SRAM, not DRAM, but ya know) but since it is my first time building, i decided to just cut the DRAM and switch it out for SRAM

[dcgreen2k]

Just now, iLostMyXbox21 said:

technically, it is not 100% what i wanted (it is SRAM, not DRAM, but ya know) but since it is my first time building, i decided to just cut the DRAM and switch it out for SRAM

Yeah it would be much better to start out with SRAM since it doesn't need to be refreshed constantly like DRAM. With this kind you can access the data written to it at any time until you overwrite it.

[iLostMyXbox21]

1 minute ago, thegreengamers said:

Yeah it would be much better to start out with SRAM since it doesn't need to be refreshed constantly like DRAM. With this kind you can access the data written to it at any time until you overwrite it.

that is true. because doesnt SRAM just reset when it is disconnected frrom power

[dcgreen2k]

2 minutes ago, iLostMyXbox21 said:

that is true. because doesnt SRAM just reset when it is disconnected frrom power

They both need to be powered, it's just that DRAM needs additional power circuitry to refresh the memory by sending power to the capacitors on the PCB.

[iLostMyXbox21]

9 minutes ago, thegreengamers said:

They both need to be powered, it's just that DRAM needs additional power circuitry to refresh the memory by sending power to the capacitors on the PCB.

ah