Question about external ram

Hi everyone!

So, am new to this ‘microcontroller’ thing and i was wondering if it is possible to use a separate ram chip with your arduiro (or any microcontroller for that matter). I figure that i would try and use my broken PSP screen with my uno, and the best way to do that (well that’s how it’s done on the pc) would be to draw on the screen via writing to memory. As the PSP screen is 480x272 pixels wide, my arduino doesn’t have nearly enough ram for it.

Thanks in advance!