8x4 Memory - v2

351

04:43:24

A remake of another circuit of the same name, this circuit is actually readable. The other circuit was quite useless as WOM(write-only memory) unless you saw the red/blue pins and read those. The registers are numbered(visually):

1 4 7
2 5 8
3 6

There are 8 switches, so I didn't have to do all of that gate working. They are numbered(visually):

1 2 3 4
  5 6 7 8 RESET

There are 4 inputs, visually numbered:

A
B
C
D

There are 32 LEDs for the states of the registers. These are numbered(visually):

1A 1B 1C 1D 2A 2B
3D 3C 3B 3A 2D 2C
4A 4B 4C 4D 5A 5B
6D 6C 6B 6A 5D 5C
            7A 7B 7C 7D
            8A 8B 8C 8D

You can store up to 2^32 different states! Have fun!

Change Log:
V2: Added reset button

published 8 years ago

billypollock

8 years ago

Unfortunately i hate to do this because you circuit is awesome you obviously spent alot of time on only to forget the reset button

BillyT

8 years ago

The circuit can be reset by turning it off and clearing it. Here is an update on it. http://everycircuit.com/circuit/4871272221900800

hurz

8 years ago

Memory's usually do not have a reset pin. For this compiler do run before main() a special assembler peace of code called CSTART to initialise global and static storage.

hurz

8 years ago

BTW, this circuit is also not "readable" memory and wont make sense for a CPU.

PTamas

8 years ago

Somebody can make ECC RAM?

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