Hello All,

This is my first posting to the list, so please excuse me if this is a
previously discussed topic.

I'd like to drive an IR LED with a 12C508, sending out a bit stream on a 40kHz
carrier. I'm wondering if I need to use a transistor to drive the LED, or if I
can just use one or more output pins in parallel. I notice that the data sheet
shows each pin on the '508 can source or sink 25mA -- can each pin supply this
much current simultaneously, or is there a total limit for the chip as a
whole? Ideally, I'd like to be able to send 100mA through the LED (in pulses
of 12 usecs each).

Is this possible if I tie several output pins in parallel?

Thanks,
Mark Winters