Stan Ockers wrote:

> If you are trying to save PIC pins, I think the 4051 1-of-8 switch
> will allow 25 milliamps to be routed through it, (either direction).

  You'd be lucky!  In particular, the "either direction" is wrong.  The
chip latches up in one particular direction at this current, as the
specs point out.

  If you insist on using a part *not* designed for the application, at
least use the 74HC4051.
--
  Cheers,
        Paul B.