Actually, sales of these parts seem to be quite brisk even though it’s a relatively old part.
Of course, in larger quantities, most likely I would have my CPU/MCU perform the keyscan, but when it comes to say building 100 devices, sometimes it just not worth the extra software effort.
It’s nice just to buy a chip and have it perform all the signal conditioning and key debouncing. It just depends.
But again, this is just my honest opinion.
Barry
-----Original Message-----
From: Dave VanHorn
[mailto:dvanhorn@cedar.net]
Sent: Wednesday,
March 10, 2004 6:56 AM
Subject: RE: [AVR-Chat] Re: Speed
Trap
At 06:18 AM 3/10/2004 -0800, LightYearCS
wrote:
>Actually,
using findchips.com, I noticed the MM74C923 and MM74C923 arent
>cheap
either at $6.82 US in small quantities.
Which is why
we use micros, and why such chips have very limited sales. :)