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Looking for late MOS/CSG8551A (6551A) Date code '89 or later

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fhw72

Post subject: Looking for late MOS/CSG8551A (6551A) Date code '89 or later

Posted: Thu Jul 14, 2022 8:26 am

Joined: Thu Jul 20, 2017 9:58 am
Posts: 91

Hello @ll,

in order to prepare a future dissection of the chip:
We're looking for a MOS 8551A/6551A or CSG 8551A with late date code: '89 or later.

Or if it's stamped with "22" which means H-MOS-II R2

Please let me know if you have one to sell.

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