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hauntertoday at 12:17 PM3 repliesview on HN

And if you are curious about the modern radiation hardened CPUs then the current state of the art ones are the MOOG BRE440 [0] and the BAE RAD5500 [1], 5545 [2] being the highest performance multi core one.

Even more interesting that they both use the IBM POWER architecture!

0, https://www.moog.com/products/avionics/spacecraft-avionics/b...

1, https://en.wikipedia.org/wiki/RAD5500

2, https://web.archive.org/web/20190226111129/https://www.baesy...


Replies

kjs3today at 12:53 PM

There have been a number of rad-hard SPARC chips from different vendors tthat have flown along the way, and I know Frontgrade/Gaisler currently sells a SPARC v8 version, which isn't that far behind the 'state of the art' as the e5500 based PPCs from BEA (at least as far as state of the art in space rated, rad-hard processors goes...it's a conservative market). Quite a few rad-hard ARMs out there farther down the performance curve.

Frontgrade also advertises a rad-hard RISC-V, as does Microchip (a PIC64 variant), that I know nothing about, but seems like an inevitable next step. Seems like you could grab some Xilinx rad-hard FPGA and bobs your uncle.

NooneAtAll3today at 1:21 PM

what scale of radiation do such hardened designs target?

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fred_is_fredtoday at 1:02 PM

Wow, until you posted this I thought Moog was just a synthesizer company. And a bit of an odd one at that based on how I saw that synth presented.

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