[HECnet] Recommendation on replacement Dallas DS1287A

[Brian Schenkenberger, VAXman-]

Michael Holmes <mholmes10 at hotmail.com> writes:

>Gurus,
>
>
>I'm looking for your advice.
>
>
>My DEC 3000 gave me a POST NVR error and after trying all the steps to fix =
>it (reseating boards, memory, etc...) it looks like the RTC (DALLAS DS12871=
>A) has died.
>
>
>Searching on line I found some places marketing a replacement for DS1287 fo=
>r old PC's but not sure if any would work for DEC given it had an A at the =
>end in the model number (different pins etc...)
>
>
>Given that this sounds like a common problem on early VAXen, I was wonderin=
>g if of you have some recommendations on a good source to purchase a replac=
>ement RTC that will work with DEC equipment.
>
>
>Thanks much!

You can replace it with the newer DS12887 available from various electronics 
parts resellers.  Several listed below:

http://www.mouser.com/ProductDetail/Maxim-Integrated/DS12887A+/?qs=0Y9aZN%252bMVCW5MO2pWUs%252bYA==
http://www.digikey.com/product-detail/en/DS12887A%2B/DS12887A%2B-ND/956873
http://store.batteryspecialists.com/ds12887a.html
http://www.interstatebatteries.com/1/1/5018-ds12887a-lit2695.html

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