Minecraft Maps / Redstone Device

32 Bit RAM (Random-access memory)

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vanyamil's Avatar vanyamil
Level 23 : Expert Geek
9
This is a little device I built in 2 hours just for fun. This RAM is modular, which means you can copy/paste it to make it bigger. Of course, it will make it also slower. The RAM is based loosely on the SN74181 integrated circuit chip.

CONTENTS :

  • 32 memory cells contained within a 8-by-4 grid
  • Every one is separately triggered on the input board
  • When a cell is selected, the outputs show its state (green for 1, red for 0)
  • To write in the selected cell, press on the button corresponding to the new state

Check out my team channel : http://www.youtube.com/unitjab10
Progress100% complete
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1
12/05/2012 3:46 pm
Level 1 : New Engineer
CMOSprinkles
CMOSprinkles's Avatar
It doesn't necessarily require anything too complex to store multiple bytes in a cell, I personally plan to use an array of RS NOR Latches to hold multiple bits of information per cell. The RAM I am currently designing can receive instruction words of any size simply by expanding the array. I will use multiple arrays and a Multiplexer to represent multiple lines of individual nBit memory. I will send you a link when I put mine up on the site.

P.S. The download is working now, I'll have to take a more in-depth look at it when I get home :)
1
12/05/2012 9:57 am
Level 1 : New Engineer
CMOSprinkles
CMOSprinkles's Avatar
Just want to say that it's possible I didn't fully understand the capabilities of your device and my previous statement may not be accurate, so take it with a grain of salt! Also, I think your device is deliciously complex and well designed, so great job :)
1
12/05/2012 9:45 am
Level 1 : New Engineer
CMOSprinkles
CMOSprinkles's Avatar
Hello! I just wanted to say that I am also working on a form of RAM right now to put in my ALU. This is a nice form of SRAM that you have developed here, however, it is somewhat lacking. Most likely, the reason people are not so interested in this is because each cell only holds one bit of information. It would be much more useful in circuits if each memory cell could hold one or more bytes, which is 8 bits of information. Also, the information in each cell should be able to be easily accessed. I wish I knew more about your device, but the download doesn't seem to be working. Let me know if I said anything wrong about it! Just thought I would give you my opinion since I am also developing my own form of RAM :)
1
12/05/2012 3:36 pm
Level 23 : Expert Geek
vanyamil
vanyamil's Avatar
Through this device, it is possible to write a whole row or column in the same time, although with the same signal (0 or 1). I am trying to work on byte-size memory, but that requires some kind of registers which I am not proficient in.
P.S. You need MCEdit or WorldEdit to install the schematic into your world
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