I'm trying to build a motor controller using a PIC16c54 to drive an
H-bridge with some very low Rds HEXFETS (with heatsinks).
The motor will be running at 24 volts, up to 30 amps continuous.

My plan was to use a Unitrode L293 or equivalent chip between the
H-bridge and the PIC, to prevent illegal gate-high combinations that
might fry the HEXFETS.  I also think something like the L293 may
be necessary to provide a high switching speed, since high switch
rates with big FETs can require higher instantaneous gate currents
than the 20 mA the PICs are rated for.

The problem is, I cant find anyone who stocks the L293.   Does anyone
have a source for the L293, or have a better idea for putting together
a motor controller?

-Nick