Memory modules Elixir

DDR2, UDIMM, 1024MB, 800 MHz, 128M x 64, 1.8V Description
M2Y1G64TU88D0B, M2Y2G64TU8HD0B, M2Y1G64TU88D4B, M2Y2G64TU8HD4B, M2Y1G64TU88D5B, M2Y2G64TU8HD5B, M2Y1G64TU88D6B, M2Y2G64TU8HD6B and M2Y1G64TU88D7B are 240-Pin Double Data Rate 2 (DDR2) Synchronous DRAM Unbuffered Dual In-Line Memory Module (UDIMM), organized as one rank 128Mx64 and two ranks 256Mx64 high-speed memory array. M2Y1G64TU88D0B, M2Y1G64TU88D4B, M2Y1G64TU88D5B, M2Y1G64TU88D6B and M2Y1G64TU88D7B use eight 128Mx8 DDR2 SDRAMs and M2Y2G64TU8HD0B M2Y2G64TU8HD4B, M2Y2G64TU8HD5B and M2Y2G64TU8HD6B use sixteen 128Mx8 DDR2 SDRAMs in BGA packages. These DIMMs are manufactured using raw cards developed for broad industry use as reference designs. The use of these common design files minimizes electrical variation between suppliers. All Elixir DDR2 SDRAM DIMMs provide a high-performance, flexible 8-byte interface in a 5.25" long space-saving footprint.
The DIMM is intended for use in applications operating up to 333MHz (or 400MHz) clock speeds and achieves high-speed data transfer rates of up to 667Mbps (or 800Mbps). Prior to any access operation, the device CAS latency and burst / length /operation type must be programmed into the DIMM by address inputs A0-A13 and I/O inputs BA0, BA1 and BA2 using the mode register set cycle. The DIMM uses serial presence-detect implemented via a serial 2,048-bit EEPROM using a standard IIC protocol. The first 128 bytes of serial PD data are programmed and locked during module assembly. The remaining 128 bytes are available for use by the customer.