CIA 6526A or 8521

Disk drives, Monitors, SuperCPU etc.
radron5809
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CIA 6526A or 8521

Post by radron5809 » Fri Feb 23, 2018 3:54 am

Does anyone make a replacement chip for the 6526a or 8521. Want to get a C64 Reloaded MK2 board, but only have CIA 6526 chips, and it says to use 6526a or 8521 chips (guess these are 2Mhz and the 6526 is 1Mhz). I find one here and there on ebay, but any websites that sell these chips and actually have stock?



radron5809
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Re: CIA 6526A or 8521

Post by radron5809 » Sat Feb 24, 2018 12:45 am

Okay, emailed the folks at Individual Computers and was told I could use the 6526 or the 6526A.

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eslapion
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Re: CIA 6526A or 8521

Post by eslapion » Sun Feb 25, 2018 11:24 pm

The 8521 is just a HMOS version of the 6526 which dissipates less heat. They are mostly identical from a software and electronics point of view.
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