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The benefits of using nvSRAM in data-logging apps

Posted: 20 Apr 2009 ?? ?Print Version ?Bookmark and Share

Keywords:nvSRAM? memory non-volatile? solid memory state?

Many of today's data-logging applications need to safely store huge amounts of data. Dataloggers fall into two categories: standalone and embedded. Standalone dataloggers are typically external boxes that receive data via external sensors, cables or wireless RF signals. Embedded dataloggers, on the other hand, are designed and built into a larger piece of equipment and are a permanent part of that system.

Some of these applications can still use conventional HDDs, but many others now demand a flash memory IC-based 100 percent solid-state solution because of their data-capture speed, physical size, weight, power requirements and/or hostile environment specs such as vibration, physical shock and extreme temperature.

These flash-based non-volatile subsystems are expected to proliferate as flash densities grow and their price points drop. However, in memory subsystems where flash is the only non-volatile memory, several shortcomings still need to be resolved. These shortcomings can all be corrected by adding a second non-volatile memory, specifically a non-volatile SRAM (nvSRAM) as a "flash page assembly unit" to the memory subsystem. This article describes this improved solid-state memory system.

View the PDF document for more information.

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