[sdiy] Pro One's 8021 microcontroller

[Gabriel Lindeborg]

It's an old, really old, standard Intel uC in a 28-pin dip package who 
evolved into the 8049 that was found as keyboard controllers of the 
first PCs. It had 1k ROM and a maximum fcpu of 3Mhz.
As for a direct replacement there is none as I know of... sorry.
But a modern 8051 derivate could propably be used w. some nifty 
programming and interfacing. As Neil did so successfully w. his Jenny 
(Jen SX1000) 
http://www.milton.arachsys.com/nj71/index.php?menu=2&submenu=4&subsubmenu=1

//Gabbe

sergio koval wrote:

> Hi...
> Somebody knows something about this microcontroller (8021)
> from the SCI Pro One.
> Is it a standard chip or a SCI custom ?
> Needs a masked program burned in it ?
> 
> Wine Country only gives me evasives.
> 
> Thanks in advance
> 
> Sergio
> 
> 
>