If the chips are cheap and easily available, and you know their failure modes, and they've been field tested for decades, why change?
It's very different from many software development attitudes, but remember that airframe manufacturers and avionics companies employ many people just to calculate risk and failure rates. The failure rates of these things are critical to the safety of your airframe.
If the chips are cheap and easily available, and you know their failure modes, and they've been field tested for decades, why change?
It's very different from many software development attitudes, but remember that airframe manufacturers and avionics companies employ many people just to calculate risk and failure rates. The failure rates of these things are critical to the safety of your airframe.