Never heard of this before, nice work! I have some of these chips here, originally from nurse call systems "liberated" from a skip.
for some reason they code protected them but thats not a big problem as the chips can be erased just fine.
Do you know that the 12F683 can be run at up to 33 MHz stock? And the 12F675 can also be OC'd to well over 28 MHz possibly as high as 36 if you increase the Vcc to the maximum limit and add the correct sized capacitors on the crystal legs.
Rumour has it that someone overclocked a 12C508 to 60 MHz when cooled to -50C with a Peltier (!)
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Brilliant!
Never heard of this before, nice work! I have some of these chips here, originally from nurse call systems "liberated" from a skip.
for some reason they code protected them but thats not a big problem as the chips can be erased just fine.
Do you know that the 12F683 can be run at up to 33 MHz stock? And the 12F675 can also be OC'd to well over 28 MHz possibly as high as 36 if you increase the Vcc to the maximum limit and add the correct sized capacitors on the crystal legs.
Rumour has it that someone overclocked a 12C508 to 60 MHz when cooled to -50C with a Peltier (!)
http://4hv.org
-A