>
> Hi,
>
> Does anyone know what the test input on a 17C42 does?
> What would the effect be of leaving it unconnected?

It's used in programming mode. The data sheet (which I'm trying to pull via
the web as we speak) describes the pin and it's operation. The programming
spec for the 17CXX definitely talks about it. The web site isn't
talking to me right now. Check it out.

BAJ