Elpida 4GB DDR2 na jednej kości

Elpida (Jap) ogłosiła skonstruowanie modułu rejestrowanych pamięci DRAM (Dynamic Random Access Memory) do zastosowań serwerowych o pojemności 4 GB. Pojedynczy panel pamięci zawiera dziewięć "kostek" po 512 MB. Pozwala on na transfer danych z szybkością 8.4 GB/sec.
Technologia Elpidy umożliwia rozbudowanie serwera do 32 GB pamięci (przy ośmiu slotach na płycie). Dokładniejsze dane w dalszej części news'a.

Elpida's 4 Gigabyte DDR2 Registered DIMM - Technical Details

Elpida's 4 Gigabyte DDR2 Registered DIMMs (Part numbers: EBE41RE4AAHA-5C-E, EBE41RE4AAHA-4A-E) are organized and 512M words x 72-bits x 2 Ranks. The modules are composed of thirty-six pieces of 1 Gigabit DDR2 SDRAM devices stacked using sFBGA technology in 240-pin packages. The stacked packages actually improve module yield because they are based on devices that have already been tested. The unique electrical characteristics of Elpida's package include enough headroom to support higher frequencies for modules based on future generation DDR2 devices. The current generation DDR2 devices mounted on the DIMMs each have a CAS latency (CL) of 3-4-5, a burst length of 4 or 8 and 1.8 Volt operation with a data transfer rate of up to 533 Megabits per second (Mbps). This translates to a module data transfer rate of 4.2 GB/sec per channel, or 8.4 GB/sec per system.