Talk:Programmable read-only memory

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what is the typical uses of PROM


Does anyone know when the first "PROM's" were developed or actually made and used?

sorry, it does say invented in 1956

The picture of an NEC uPD23128C chip is not really appropriate here. That chip is a mask ROM, not a PROM. Datasheet for that mask ROM can be downloaded at —Preceding unsigned comment added by MarkK321 (talkcontribs) 12:24, 23 July 2009 (UTC)

Suggest merge[edit]

Polyfuse should be merged here to put it in context; it covers material that belongs in this article. --Wtshymanski (talk) 16:52, 15 May 2012 (UTC)

  • oppose Yet again, this is Wtshymanski doing his "I don't know what a Polyfuse is, but if it's not clear to me how it's different from a broader case it can't be any different from the broader case."
No, polyfuse is too far from PROM in general for this to be a good merge. Andy Dingley (talk) 18:08, 15 May 2012 (UTC)
Could you give some examples of where you'd find a polyfuse that isn't in a PROM? --Wtshymanski (talk) 18:13, 15 May 2012 (UTC)
PROM is an application. Polyfuse is one implementation technology for achieving it. Although the technologies might have commonality, the scope of the articles, and the needs of their readership, don't. Andy Dingley (talk) 00:13, 16 May 2012 (UTC)
So there are no uses of polyfuses that aren't in PROM? --Wtshymanski (talk) 02:40, 16 May 2012 (UTC)
Firstly that just doesn't matter. As above, one's an application, the other is (one of several) chip-design-level techniques for building them.
Also AIUI (which isn't much on chip design, I admit) there are several techniques for building PROMs and when PROM means a memory unit for data storage of a substantial amount of data, polyfuse isn't the favoured technique for doing it. Polyfuses are used more for low data volume needs like device serial numbers and on-site configuration. I don't know if this is because of manufacturing benefits or in-use benefits. Andy Dingley (talk) 09:04, 16 May 2012 (UTC)
One example is entirely adequate to prove you wrong (as usual). Polyfuses are also used in early type OTP programable array logic (PAL). Current examples use FLASH technology. There are probably many other examples. (talk) 08:58, 16 May 2012 (UTC)
  • oppose Not exclusive to PROM. Also polyfuse was not the only way a PROM was manufactured. Other fuse types have also been used. But since Wtshymanski only knows anout polyfuses, everyone else (including the manufacturers) must be wrong. Based on the largely disruptive editing history, two or more opposes are unlikely to prevent Wtshymanski merging the articles anyway. I note that WP:M has been breached in that the target article has not (as usual for Wtshymanski) been tagged. After all, he doesn't want too many people knowing what he is up to. (talk) 08:58, 16 May 2012 (UTC)

I've renamed polyfuse to polyfuse (PROM). polyfuse is now a redir to resettable fuse, as the primary topic for that name, and the source of most of the inbound links. Andy Dingley (talk) 09:45, 25 September 2012 (UTC)

External links modified[edit]

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Question? Archived sources still need to be checked

Cheers.—cyberbot IITalk to my owner:Online 17:25, 27 February 2016 (UTC)