On Wed, May 24, 2023 at 10:54 AM emanuel stiebler <e...@e-bbes.com> wrote: > > On 2023-05-24 05:26, Tony Duell via cctalk wrote: > > On Wed, May 17, 2023 at 5:29 AM Fred Cisin via cctalk > > <cctalk@classiccmp.org> wrote: > > > >> Last time that I tried to research it, I found that there had once been an > >> external drive in which the USB and controller werenot integrated with the > > Alas some spoilsport has removed the numbers from them. One (14 pins) > > is probably a TTL buffer to drive the disk drive signals. The other > > (still an SMD dual-in-line package but closer pin pitch than the SOIC > > of the other chip) is presumably a USB floppy controller. When I have > > time I'll probe things and see if I can figure it out. > > Some of the USB<->Floppy drives used the SMSC USB97CFDC like chips. > Which basically was an 8051, USB and a 765 FDC in a chip ... >
Unfortunately the data sheets for that series say that said chips come in a 100 pin PQFP package. This things has a lot few pins and only on 2 sides of the package. So not that. -tony
