[sdiy] Driving LEDs

[John Blacet]

OK, here's the problem:

I need to drive 20 LEDs from a PIC type uC. The LEDs are on a separate
board so I want to keep the number of interconnects small. I only need
one LED at a time to be on. So, I seem to need a decoder with 5 lines in
to 20 out. Most of the stuff I see is 3 to 8. Any ideas?

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Regards,
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John Blacet
Blacet Research
http://www.blacet.com
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