At 09:56 PM 5/19/02 -0500, you wrote:

>I also use SIP resistors with a single common on the common side
>of the mux, but if I used DIP resistor networks, I could run say
>R1 from RB0 to LED anode, R2 from RB1 to the same LED anode, then
>the common to the transitor, etc.  This way, any brief unexpected
>moment of conflicting outputs to a single LED would have the
>protection of 2R between them.

I can't see anything wrong with this method. Good thinking.
DIP resistor arrays are expensive, but SMT DIP networks are cheap.
You also double up on the available resistor power dissipation that way.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
9/11 United we Stand

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