I have multiple sets of jumpers to route UARTs and other lines depending on which of two microcontrollers I'm programming on a board.
I'd like a way to set jumpers with a single control signal.
Most (probably all) of the jumpers route a 3.3V signal from one device to another.
I don't think any of the signals are bidirectional.
My application is similar to wanting to be able to select which of two Propeller chips to program with a Prop Plug. By setting a single pin high or low, I'd like to be able to route all the Prop Plug connections to one of two possible chips. This isn't the exact application I have in mind but I think it describes the problem reasonably well.
I'm wondering if a multichannel buffer could be used this way. I'd need a buffer which had an enable pin. I could use an inverter to enable one buffer chip while disabling the other.
Can anyone suggest appropriate chips for this type of application? I'm not certain how many lines I need to switch but it's likely around four.