Looking for an 8 bit FDC...

[Chuck Guzis]

On 10/25/2005 at 1:59 PM Allison wrote:

>The 765A was least integrated but with the right external support more 
>flexible than the 37C65 and later.

You still have to put up with the "blindness' during the IAM interval and
the lack of support for MFM 128-byte sectors--and the lack of support for
non-standard address marks (not at all uncommon in old formats).  At least
with the WD chips, you can read the raw track data.

>The data seperator was a fairly simple circuit and could be done with
>a counter or for improved results with a latch and prom.

Or just find a nice little 8-pin WD 9216 data separator.   If you wanted
more than that, a PLL might be the ticket.

Cheers,
Chuck