This circuit generates VGA at 640 x 480, outputting vertical sync, vertical blank, horizontal sync and horizontal blank pulses.
This is a PCB that generates VGA at 640 x 480, outputting vertical sync, vertical blank, horizontal sync and horizontal blank pulses. There are also connections for the vertical and horizontal counters, allowing you to make connections to other circuits that you require (such as RAM and ROM). Please see the BOM for the components that you will need.
I made it because this is part of an ongoing project of mine to build a 6502-based computer from scratch. This is part of the project to make a VGA video card for the computer.
This is a very niche product that if needed would be hard to find and many people may not know how do design such a circuit. For those that have such a need can buy one from me.