Re: poor man's IO?

[Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Wed, 27 Jul 2005 21:27:42 GMT, nobody@xxxxxxxxxxxx (Dave Houston) wrote
in message  <42e8fbfc.75967824@xxxxxxxxxxxxx>:

>nobody@xxxxxxxxxxxx (Dave Houston) wrote:
>I wasn't aware that Silicon Labs now has a version of their USB chip with 4
>GPIO ports.
>
>
>http://www.sparkfun.com/shop/index.php?shop=1&cart=349899&cat=1&itemid=446&;


The least expensive RS-232 solution (not USB) I know of uses the 74LV8153
which is in stock at www.Digikey.com  for $1.58 each. This is a single IC
solution for RS-232--> 8-Bit discrete output using one IC and a few passive
components.

Writeup and schematic here:
www.elecdesign.com/Articles/ArticleID/10524/10524.html

HTH ... Marc
Marc_F_Hult