lairdkb@mentor.cc.purdue.edu (Kyler Laird) (10/20/90)
I should have asked, but I was so excited to find someone who had DTMF decoders in stock... So now I have three IC's without data sheets. (Kinda like having a great computer w/o an OS... o.k., not quite) They're identified as: UM9203 9029S 918683 They're 18-pin, so I assume they have some extra features like call progress monitoring... (more features than Radio Shack's) Also, I got a DC-DC conveter (to pass the $20 minimum). 5-pin inline. Groups of 3 pins and 2 pins. Any ideas? I'm guessing 2 in, 2 out, one control. Thanks for the help - the help I've gotten from the net already has made my project infinitely more 'do-able' (from 0% - xx%). I appreciate it. --kyler