On 11 May 2007 at 22:42, Richard A. Cini wrote:
Interestingly, the IC1 on this drive is a QFP chip
from Hitachi (HA16642MP).
The PC board revision is "Rev. C" so maybe that's part of it. I think this
is probably an AT-era drive but I thought the base AT came with 1.2mb
drives? Maybe an option?
Nope--that'd be the 380. Here's the info and a few specs for the
580:
http://ja1wby.art.coocan.jp/hamg/7-fm7-fdd/2-yd-580.html
Note that the spec calls for 150 ohm pullups on both the host and
drive side.
Cheers,
Chuck