Just started looking thru my bin of old TTL parts for a 74xx244 or some
other driver to experiment with driving a higher current thru my 4 mux'ed
LED's.  But then I thought -- if I have extra ports on the PIC, why can't
I run these in pairs for each LED segment?  At 25mA max source/sink
on a 16F872, I could get 50mA to the LED's.  And to prevent the
condition of 2 pins of a pair being out of sync, I would use 2 pins on the
same port for each LED ... RB0 and RB1 for segment a, RB2 and RB3
for segment b, etc.

Am I out of whack here?
-Neil.

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