description: this document describes valueram's 128m x 72-bit (1024mb) ddr266 cl2 sdram (synchronous dram) registered ecc memory module. the components on this module include eighteen stacked 128m x 4-bit (thiry-six 64m x 4-bit) ddr266 sdram and three 16-bit drivers in tssop packages. this 184-pin dimm uses gold contact fingers and requires +2.5v. the electrical and mechanical specifications are as follows: features: clock cycle time (tck) 7.5ns (min.) / 12ns (max.) row cycle time (t rc ) 65ns (min.) refresh row cycle time (trfc) 75ns (min.) row active time (tras) 45ns (min.) / 120,000ns (max.) single power supply of +2.5v (+/- .25v) power (idd0) 9.985 w (operating) ul rating 94 v - 0 part no. valueram0301-001.a00 06/20/03 figure 1: kvr266x72rc2/1g 184-pin dimm kvr266x72rc2/1g 1024mb 128m x 72-bit ddr266 cl2 registered 184-pin ecc dimm note: the module defined in this data sheet is one of several configurations available under this part number. while all configurations are compatible, the dram combination and/or the module height may vary from what is described here. however, in no configuration will the module height exceed 1.700" (43.18mm).
|
