The Ware for April 2014 is shown below.
Apologies for the cracked/munged die, that’s how I received it. The die shot isn’t too high resolution, but I have a feeling its gross features are distinct enough that this ware will be guessed quickly.
The Ware for April 2014 is shown below.
Apologies for the cracked/munged die, that’s how I received it. The die shot isn’t too high resolution, but I have a feeling its gross features are distinct enough that this ware will be guessed quickly.
The over finish is so regular — it’s like there is nothing there yet.
Which I’ll guess is the point.
136 pin QFP FPGA (without the QFP, of course).
Xilinx DS136?
looks more like a gate array than an FPGA to me (fixed lower layers user defined metal layers)
That would be my guess as well. A “null” ULA perhaps?
So having barely heard of ULAs I went looking for photos. There are some high-resolution die shots of a ULA here. Neither layer looks particularly like what we see here, at least to my eye. http://www.visual6502.org/images/pages/Ferranti_ULA_9C018E7_die_shots.html
True. I retract my earlier guess.
Some kind of 3 or 6 unit CPLD? One of the branches is not like the others, that’s one thing that stands out to me.
After looking at images of un-programmed logic I notice none of them seem to be divided into sections like this die. That got me thinking. Perhaps it was something like a parallax Propeller with its separate processing sections. A quick search found an image of the Propeller 2 as shown here:
http://forums.parallax.com/showthread.php/147820-Propeller-2-die-picture
+1 for Parallax Propeller. They come on blue PCBs too.
I’m reminded of an episode of fake Atmel chips having nothing but a copper slug in them….
https://www.sparkfun.com/news/350