Pinout for SED9421

[Peter C. Wallace]

On Fri, 25 Nov 2005, woodelf wrote:

> Allison wrote:
>
>> Either that a Dflop(74LS74), hex D-latch(74LS174) and 32x4 prom(74LS288).
>> 
>> 
> Just for the heck of it,  got a schematic and a prom listing?
> Did anybody ever use a serial chip and a data separater
> rather than a floppy disk controler?

Heathkit did with their H89 hard sectored floppy controller....

>

Peter Wallace