I was the perp's system-integrator and software guy on one of those, but it was a 144-pin PLCC that he mirrored. Fortunately not me -- but I've done smaller ones in my time.
-- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested http://www.wescottdesign.com
That's actually a good reason to be an analog designer -- fewer pins to swizzle when you screw up a package!!
-- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested http://www.wescottdesign.com
Yes, I've kludged it, and any I intended to get the board made by a fabricator once it's finalised, since I find they're less likely to develop dry joints. Still, it annoys.
Sylvia.
That's the WiFi antenna.
Always triple-check the package. I do, and I still screw things up from time to time.
-- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested http://www.wescottdesign.com
The 22pin 0.3in package was a late innovation called a skinny-dip. Showed up late for (mainly) memory or programmable logic.
Conventional 22pin is 0.4in.
There should be a mech dwg on the spec sheet, or a page of drawings in the print catalog. One of the shortcomings of data sheets that were digitized from print.
RL
RL
Is that .031" thick PCB?
Do you hand-solder or reflow it?
We have an obsolete +5V Altera CPLD that we are considering that method but it's a 68-pin QFP footprint.
Thanks,
Is that the comparator with diodes across the input?
Cheers
Phil Hobbs
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