[. . . ] [. . . ] The electrical and mechanical specifications are as follows: FEATURES: Clock Cycle Time (tCK) Row Cycle Time (tRC) Refresh Row Cycle Time (tRFC) Row Active Time (tRAS) Single Power Supply of Power (IDD0) UL Rating 6ns (min. ) / 12ns (max. ) 60ns (min. ) 72ns (min. ) 42ns (min. ) / 70, 000ns (max. ) +2. 5V (+/- . 25V) 2. 900 W (operating) 94 V - 0 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. 250" (31. 75mm). 1. 250 (31. 75) (17. 80) 0. 700 0. 393 (10. 00) 0. 000 (00. 00) 1 Units : Inches (Millimeters) (2. 50 ) 0. 26 (6. 62) 0. 100 0. 250 (6. 350) 0. 157 (4. 00) 0. 1496 (3. 80) 0. 039 ± 0. 002 (1. 000 ± 0. 050) 0. 0787 (2. 00) 0. 0078 ±0. 006 (0. 20 ±0. 15) 0. 050 (1. 270) 0. 1575 (4. 00) 0. 118 (3. 00) 2. 175 0. 071 (1. 80) Figure 1: KVR333X64C25/512 184-Pin DDR SDRAM Module Document No. VALUERAM0229-001. C00 03/21/03 5. 250 (133. 35) 0. 000 (00. 00) 2. 886 (73. 30) [. . . ] [. . . ]