Yeah, Tom, I remember reading about Gordon Moore or somebody else at Intel meeting with a gentleman from another semiconductor house and revealing the sodium issue in exchange for the solution to another vexing process problem.? I don't remember the details, but the story was hilarious!? Laugh out loud funny!? Maybe you know the details?? ? ? ?Jim Ford?Sent from my Verizon, Samsung Galaxy smartphone
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-------- Original message --------From: Tom Lee <tomlee@...> Date: 7/19/21 5:23 PM (GMT-08:00) To:
[email protected] Subject: Re: [TekScopes] [OT] Datasheet for NC7033 or NCR7033 NVRAM needed. Early yes, standard not so much.The 7033 is an MNOS (sic) EAROM. The underlying enabling principle was discovered when Gordon Moore punked the entire industry into chasing nitride gates as the solution to MOS's notorious threshold shift problem. Nitrides turned out to be even more unstable then sodium-contaminated oxide (Intel had already pissed away big bucks finding that out; Moore helped everyone else experience the pain). That instability was exploited to make EAROMs, but they could never really stabilize the instability, if you get my meaning. These devices could not tolerate many write cycles. Their primary use was as channel memories in TVs and cable boxes, where reprogramming was a very rare event.The datasheet is the last appendix of the following: this helps. Good luck!-- Cheers,Tom-- Prof. Thomas H. LeeAllen Ctr., Rm. 205350 Jane Stanford WayStanford UniversityStanford, CA 94305-4070 7/19/2021 16:48, David Slipper wrote:> Sorry for the OT but I'm getting desperate - it's supposed to be a > standard early NVRAM but it and it's data-sheet seem to be unobtanium.>> Regards,> Dave>>>>> >>
