> Kevin J. Slater wrote:
>
> <snip>
>
> > Alternately, can anyone suggest an IC that could be used to read the keypad
>  and
> > present the key pressed to a PIC pin?
>
> I have used the 74C922 & 74C923 chips which scan a 16-key or 20-key
>  (respectively)
> keypads.  They are pricey at $13.13 US for ones at Digi-Key, but drop to
 $5.625
>  in
> hundreds.  They work well handling all the scanning, rollovers, and generating
>  an INT
> signal on keypress.  Four data lines plus some control line overhead and two
>  caps.
>
> I always buy the `923's as they are the same price as the `922's.
>
> Michael

Michael:

You may want to check Jameco instead .., I believe they charge $5.95 for each.

        Philip Restuccia
        philip.restuccia@peri.com