24 Jan
2011
24 Jan
'11
1:25 p.m.
I'm planning on replacing the
"recommended" 75157/75158 "dual
differential driver/receiver" pair with a 26LS31/26LS32 quad diff RX/TX
pair on the grounds that:
* The 26LS parts are cheaper by about a factor of 3
* the 26LS parts seem to be easier to find (higher stock levels at
Farnell and Digikey when I last checked).
Anyone reckon I'm likely to have any problems with this substitution?
I am assuming this is for the data in/out signals on the ST412 interface...
Every (I think, if not then a very large majority) of the ST412 disk
drives and controllers I've reverse-engineered, looked at, or reparied
over the years has used the 26LS31 nad 26LS32 chips. So I can't see why
you'd have problems with them.
-tony