M2F2G64CB88D7N and M2F4G64CB8HD5N are 240-Pin Double Data Rate 3 (DDR3) Synchronous DRAM Unbuffered Dual In-Line Memory Module (UDIMM), organized as one rank of 256Mx64 (2GB) and two ranks of 512Mx64 (4GB) high-speed memory array. Modules use eight 256Mx8 (2GB) 78-ball BGA packaged devices and sixteen 256Mx8 (4GB) 78-ball BGA packaged devices. 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 DDR3 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 of 533MHz/667MHz clock speeds and achieves high-speed data transfer rates of 1066Mbps/1333Mbps. Prior to any access operation, the device latency and burst/length/operation type must be programmed into the DIMM by address inputs A0-A13 (2GB) / A0-A14 (4GB) and I/O inputs BA0~BA2 using the mode register set cycle.
The DIMM uses serial presence-detect implemented via a serial EEPROM using a standard IIC protocol. The first 128 bytes of SPD data are programmed and locked during module assembly. The remaining 128 bytes are available for use by the customer.
