3 ms·
You sure about that? Maybe 6502's are old enough before proper ESD protection circuitry became mainstream, but generally smaller nodes are a lot more sensitive
by Kirby64 7y ago
You sure about that? Maybe 6502's are old enough before proper ESD protection circuitry became mainstream, but generally smaller nodes are a lot more sensitive to ESD damage than the ancient stuff since the size of features back then just was so much bigger.
There's a reason why HBM ESD limits have gone down over time... just because it's physically impossible to protect against a certain level of ESD when you're running ultra high speed circuits.
- LIV2 7y agoThat's a good point, I think I'd just heard that a long time ago and not really thought about it but with much larger features it should actually be more resilient.
- philpem 7y agoThe original 6502 was also built on an NMOS process, not CMOS. It's CMOS which tends to be more static-sensitive, especially early CMOS. I'm not sure where CBM/MOS's HMOS process (used for -- IIRC -- the SID and VIC) fits in.