description: this document describes valueram's 128m x 72-bit 1gb (1024mb) ddr400 cl3 sdram (synchronous dram) registered ecc memory module. the components on this module include eighteen 64m x 8-bit (16m x 8-bit x 4 bank) ddr400 sdram and three 16-bit drivers in tssop packages. this 184-pin dimm uses gold contact fingers and requires +2.6v. the electrical and mechanical specifications are as follows: features: clock cycle time (tck) 5ns (min.) / 10ns (max.) row cycle time (t rc ) 55ns (min.) refresh row cycle time (trfc) 70ns (min.) row active time (tras) 40ns (min.) / 70,000ns (max.) single power supply of +2.6v (+/- .1v) power (idd0) 6.120 w (operating) ul rating 94 v - 0 part no. valueram0360-001.a00 07/14/04 figure 1: kvr400x72rc3a/1gd 184-pin dimm kvr400x72rc3a/1gd 1gb 128m x 72-bit ddr400 cl3 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 1.200" (30.48mm). .com .com .com 4 .com u datasheet
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