FDN303 datasheet

[Al Kossow]

On 9/13/16 1:29 PM, Mike Stein wrote:
> By any chance does anyone have (or know where I could find) a datasheet for an FDN303 LSI chip used in a number of floppy drives? 
> 
> Lots of tantalizing links in Google but the ones I followed all lead nowhere...
> 

you're going to have a really tough time finding tech data for any Japanese ASIC

it looks like it is a Panasonic part (most of the hits on FDN303 are for the Fairchild smt part)
used in an NEC FD1231H

about the only thing I see are mods for using them on Amigas