Tristate Buffer Output if Input is High-Z?

[Chuck Guzis]

On 9/28/2005 at 2:56 AM Jeff Walther wrote:

>If they are real parts, would someone please suggest a part number? 
>Preferably an octal transmission gate (eight on a chip) divided into 
>two sets of four with separate control lines (OE) and one OE active 
>low and the other active high.   That's how the SN74ABT241A tristate 
>buffer is configured and it's perfect for my application, other than 
>the little detail that a tristate buffer doesn't quite meet my needs. 

Well,  the old 4000-series CMOS has several transmission gates in the series; they call them "bilateral switches".  For instance see 4066.   Another type is the analogue mux/demux ICs, e.g. 4067.

All probably far too slow for your applicatoin.

Cheers,
Chuck