Memory Module Specification KVR133X72C3/256 256MB 32M x 72-Bit PC133 CL3 ECC 168-Pin DIMM Module DESCRIPTION: This document describes ValueRAM's 32M x 72-bit (256MB) CL3 PC133 SDRAM (Synchronous DRAM) ECC DIMM module. The components on this module include nine 32M x 8-bit (8M x 8-bit x 4 Bank) PC133 SDRAM in TSOP packages. This 168-pin DIMM uses gold contact fingers and requires +3.3V. The electrical and mechanical specifications are as follows: FEATURES: CLK Cycle Time (tCC) Row Cycle Time (tRC) CLK to Output (tSAC) Single Power Supply of Power UL Rating min. = 7.5ns (CAS Latency = 3) / max. = 1000ns 65ns max. = 5.4ns (CAS Latency = 3) +3.3V (+/- .3V) 2.376 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 1.375" (34.92mm). 5.250 (133.350) R 0.079 (R 2.000) 0.157 ± 0.004 (4.000 ± 0.100) 0.350 (8.890) B A 0.250 (6.350) .450 (11.430) C 0.250 (6.350) 1.450 (36.830) 2.150 (54.61) 0.100 Min (2.540 Min) .118DIA ± 0.004 (3.000DIA ± 0.100) 0.700 (17.780) 0.118 (3.000) 1.150 (29.210) 0.089 (2.26) 5.014 (127.350) 0.118 (3.000) 4.550 (115.57) 0.100 Min 0.250 (6.350) 0.250 (6.350) 0.123 ± 0.005 (3.125 ± 0.125) 0.079 ± 0.004 (2.000 ± 0.100) Detail A (2.540 Min) Units : Inches (Millimeters) 0.039 ± 0.002 (1.000 ± 0.050) 0.123 ± 0.005 (3.125 ± 0.125) 0.079 ± 0.004 (2.000 ± 0.100) Detail B 0.008 ± 0.006 (0.200 ± 0.150) 0.050 (1.270) Detail C Figure 1: KVR133X72C3/256 168-Pin SDRAM Module Document No. VALUERAM0023-001.C00 01/28/03