QDR™-II+Xtreme DDR-II+ Xtreme Sync SRAM
Infineon Technologies QDR™-II+ Xtreme SRAM memory is a high-performance, dual-port SRAM operating up to 633MHz and is available in 36Mb or 72Mb densities. The Infineon Xtreme line of QDR-II+ and DDR-II+ devices are fit-, form-, and function-compatible with existing QDR-II+ family devices, allowing manufacturers of network switches, routers, and aggregation platforms to boost performance by increasing clock speeds without board layout changes. DDR-II+ Xtreme devices are similar to QDR-II+ Xtreme devices, except that all DDR devices have a burst length of 2 and a single data rate address bus. DDR-II+ Xtreme devices provide a single port for reads and write, reducing the number of required data pin connections.
