Re: trying t build a replacement part for obsolete IC ?

to

soldered robb

FWIW, I have heard for people emulating obsolete chips with microcontrollrs or PALs. I wouldn't be surprised if that's what you would get if you ordered a significant number of them from an Asian supplier.

Al

you know after doing all this searching for the chip i was going to ask a question along those lines but then i thought i would get some feedback like

yea you can with $900 chip burner and $250 programming software, couple of months microcode/controler development experience and a couple of weeks of testing and you better buy a tube of chips in case you fry a couple and then you need a testing board and setup ........

so i did not ask :) robb

"robb" wrote in news:13f09a1cpvt8921 @corp.supernews.com:

To build?

If there is room; An adequate sized perf board with two rows od common .1" headers, perhaps with mating sockets on the one board. Also on the perf board woth be a PLCC socket with through hole .1" pins, the socket point-to-point wired to the headers. A little less witing, and you can use a surface mount socket, or solder the chip down, if you fab a PCB.

I'd try

Steve