Perhaps on a quad 555 replacement. If one truely wanted to replace a 555 then a couple of the input pins should have a/d's on them (to simulate thresh/trigger) It would interesting to see an implementation of the Dallas one-wire protocol and an LCD driver in an 8 pin package. This would make an interesting peripheral would it not? --Chuck ---------- From: William Chops Westfield[SMTP:billw@CISCO.COM] Sent: Thursday, October 10, 1996 6:43 PM To: Multiple recipients of list PICLIST Subject: Re: Siren sound -Reply I hope to be able to shoehorn many of these into sub-one-dollar parts like the 12C508, because I can market these cheap, one chip solutions that require very few external components. That would be nice. But isn't the "sub-dollar" price in quantities of 50,000 or so? Anyone know what prices are likely to be in more moderate quantities? (Say 100. Or 1.) Still, it'll be a while before the ecconamically replace a 555 ($0.39 in ones) and couple passive components... BillW