[sdiy] What type of switch would this be?

[Jeff Farr]

I need an IC that has one input that can be sent to any number of it's
outputs, ie in->out1 or in->out1 & out 2. Can a mux do this? What If I need
a total of more than 40 outputs? (ouch). Looking over datasheets I'm begging
to think I need to create a massive swich array out of smaller parts and
then use a uC to do the switching, I had at first assumed there would be
something available to the effect of having a 4bit input to determine the
output connetions..
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