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4029 CMOS
I heard they are discontinuing the 4029B CMOS decimal counter, I know I haven't been able to find it anywhere recently. So my question is, is there a replacement for this chip? (CMOS)
I heard they are discontinuing the 4029B CMOS decimal counter, I know I haven't been able to find it anywhere recently. So my question is, is there a replacement for this chip? (CMOS)
Comments
10 years ago
Who is "they" ? I can't for the life of me see ALL the manufacturers giving up on a stunningly useful piece of logic.
Certainly TI and ON, who I can check at Farnell's website are still available.
Steve
Answer 10 years ago
. +1. http://www.digchip.com/distributors/parts/4/from_4029B_to_4037042AC.php*
*Just an example, not a recommendation.
Answer 10 years ago
I guess that some stockist or other has said they aren't going to carry it. I doubt that discrete logic will ever die, its too useful.
Steve
Answer 10 years ago
Well, _someday_ programmable gate arrays will be so ubiquitous that it's cheaper to sell them, and macros for programming them, to the hobbyists.
But for now -- yeah. I can see one manufacturer deciding a given chip wasn't worth producing, but that means more market for the others. I can certainly see one supplier deciding it wasn't worth stocking, but again that may just mean you have to shop around a bit more... and the folks who stock _everything_ are more likely to get my order when I need a random assortment of stuff, since it's easier for me to place a single order than to buy stuff from multiple places.
Answer 10 years ago
Show me a CPLD that can run on what CMOS can, and I'll beat a path to your door...
Answer 10 years ago
Hm. My degree claims I'm an EE, and my first job *was* circuit design for a supercomputer (never marketed, alas, partly because it was based on bipolar just at the time when CMOS was taking over)... I doubt I've got the chops for it, but that's an interesting challenge.
Answer 10 years ago
From my acquaintance with 'em, these things have been designed for rip-roaring speed, and not economy. CMOS is lovely stuff for efficiency.
Answer 10 years ago
One of CMOS technology's huge advantages is that it can be run for either efficiency *or* speed depending on how much work you want to put into cooling it.
Answer 10 years ago
Its good stuff for sure.
10 years ago
that is why their prices are getting high, what a tragedy