Posted By
BushRat
on 2002-07-22
|  The difference
The 6526 was the CIA, the 6525 was a triport controller. The lockup could happen with ANY of the old Mos series chips. All were very static sensitive. The later generation chips had built-in diodes across the inputs to protect them from static and spikes better. Remember that Commodore had control of their own production on the larger chips. You can still find stocks of Commodore type chips, as they sold the 6502/6510 type CPUs to just about everyone making home computers at the time.
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