Re: Voice annunciated test box circuitry

From: Rich Grise (richgrise_at_example.net)
Date: 02/18/05 

Date: Fri, 18 Feb 2005 22:07:39 GMT

On Thu, 17 Feb 2005 15:36:00 -0800, Robert Monsen wrote:
...
> Meh. Multiplication. You'd need 32 buffers, and 32 pins to select them.
> You need a pin per input. There are probably better ways to do this...

16X 74HC150.

or 32x 74HC244 and 2X 74HC154, depending on how you want to scan them.

Cheers!
Rich