QDRII/DDRII/QDRII+/DDRII+ SRAM

In 1999, the QDR SRAM Co-Development Team was created to define a new family of SRAM architectures for high-performance communications applications. Participating companies work closely together to ensure multiple sources for the new QDR SRAMs by developing pin- and function-compatible products. The QDR family of SRAM products incorporates extensive input from networking industry leaders. QDR SRAM devices have two ports running independently at twice the rate of conventional synchronous memories, resulting in four data items per clock cycle. The QDR SRAM family of products includes Quad Data Rate and Double Data Rate common and separate I/O definitions. Depending on the application, products in the QDR SRAM family can more than double SRAM device efficiency per pin. ( www.qdrsram.com.)

Quad Data Rate™ SRAM and QDR™ SRAM comprise a new family of products developed by Cypress, IDT, NEC, and Samsung. Renesas Technology is currently finalizing a formal agreement with the other QDR team members. Any other trademarks referenced herein are the property of their respective owners.

http://www.qdrconsortium.com/