[Coco] Display 80 I.C.?

[Mike Pepe]

coco at yourdvd.net wrote:
> Does anyone remember the I.C. part number that Tony used in the Display
> 80 adapter? I have created a very BASIC vga controller, that actually
> works - nothing fancy - just lets me turn on dots of color on the
> monitor, but I want to evolve it into a replacement for that particular
> I.C. (which has long been discontinued). Basically I just need the part
> number for the I.C. so I can find a data sheet. If I succeed, then CoCo
> 1 and 2 users that have Display 80's will be able to use a VGA monitor
> instead of composite. I don't manufacture or sell anything, but if
> successful, the plans , schematics , etc. will be available to anyone
> who wants them. -r
> 
> 

Just guessing here, it may have been a 6845