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nvSRAMs deliver non-volatile memory with no battery

Posted: 30 May 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Marty Gold? Cypress Semiconductor? non-volatile SRAM? nvSRAM?

Cypress' new non-volatile SRAMs

Cypress Semiconductor Corp.'s family of non-volatile SRAMs (nvSRAMs) internally store data when power is lost, with no battery required. These RoHS-compliant nvSRAMs use a charge stored on an external capacitor instead of a battery, allowing the devices to be manufactured on a standard PCB assembly process for low cost.

Operating with access times as fast as 25ns, the nvSRAMS are available in 1Mbit/3V, 256Kbit/3V, 256Kbit/5V, 64Kbit/5V and 16Kbit/5V configurations. The devices are highly scalable, with all of the configurations available in small 32-pin SOIC packages and the 1Mbit and 256Kbit devices also available in 48-pin SSOP packages. The devices offer data retention for a minimum of 20 years, according to Cypress.

The nvSRAMs are aimed at any application requiring continuous high-speed writing of data and absolute non-volatile data security, such as Redundant Array of Independent Disks (RAID) applications, copiers, PoS terminals, handheld meters and consumer electronics products. In RAID applications, nvSRAMs offer high-speed data transfer while ensuring data integrity in case of power outages. For copiers, nvSRAMs deliver fast data access and eliminate the need for a battery. Handheld meters benefit from the data buffering provided by nvSRAMs for fast access to data being uploaded to a server.

Cypress' nvSRAM family is currently sampling, with production starting in July 2006. Pricing for the 256Kbit device starts at under $9.70 in 1,000-unit quantities.

- Marty Gold

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