[Coco] EPROM for Coco 3 Motherboard

[Bruce Borer]

I am working with SST39SF040 Flash. Which gives me 64 pages of 8Kx8 or
32 pages of 16Kx8.
You would need an adaptor PCB but there is room in the CoCo 3 main
board or as I am using
it in the FD 502 Disk Controller.
It works with 5 volts and has a similar pinout as the CoCo 3 ROMs.
I am in the process of testing my unit to be programmed in circuit
using additional circuitry.

If you would like to know more please reply to this.

Bruce P. Borer P.Eng. Ret.

On Fri, Dec 20, 2024 at 3:26 PM coco--- via Coco <coco at maltedmedia.com> wrote:
>
> All
>
> Where would I get a 32KByte EPROM EEPROM or Flash Memory that could be a
> dropin replacement for the Coco 3's Motherboard ROM or even better a
> 64KB with some kind of switch to determine which 32KB the Coco will see.
>
> Charlie
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco