Simtek NVRAM

Hi

Anyone had any experience with Simtek non-volatile RAM - the sort that writes all its data to (EEPROM?) in one hit when the supply falls below a trigger level (type STK14CA8)?

Cheers Geoff

Reply to
Geoffrey Mortimer
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On Wed, 22 Dec 2004 13:02:09 +0100, "Geoffrey Mortimer" wrote in comp.arch.embedded:

We've been using Simtek parts for about five years now, and they work quite well. You just have to make sure that you follow the data sheet recommendations for Vcap and the pull up on the write line. In addition, you might have to make sure your program does not try to access the contents of the RAM during store and recall cycles.

Did you have any more specific questions?

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Jack Klein
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Reply to
Jack Klein

hi Geoff,

Not that particular device, but have used the STK22C48 for a number of years now without a problem.

They are good devices, a little expensive though.

Have you considered using FRAM from Ramtron. All the same benefits plus more. No need to hold the supply up long enough to allow a write to EEPROM. Can have a RTC as well. Wonderful devices.

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PhilW

Reply to
Phil W

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