Memory Module Specification
DESCRIPTION:
This document describes ValueRAM's 32M x 64-bit (256MB), CAS Latency 3 (CL3)
SDRAM (Synchronous DRAM) 100MHz memory module. The components on this module
include sixteen 16M x 8-bit PC100 CL3 SDRAM components 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) min. = 10ns (CAS Latency = 3) / max. = 1000ns
Row Cycle Time (tRC) 70ns
CLK to Output (tSAC) max. = 6ns (CAS Latency = 3)
Single Power Supply of +3.3V (+/- .3V)
Power 4.658 W (operating)
UL Rating 94 V - 0
Document No. VALUERAM0071-001.C00 02/27/02
Figure 1: KVR100X64C3/256 168-Pin SDRAM Module
KVR100X64C3/256
100MHz SDRAM 168-Pin
PC100 Memory Module
5.250
5.014
Units : Inches (millimeters)
0.150 Max
0.050 ± 0.0039
(1.270 ± 0.10)
R 0.079
(R 2.000)
0.250
(6.350)
1.450
(36.830)
2.150
(54.61)
0.118
(3.000)
0.350
0.100Min
(2.540Min)
0.700
(17.780)
.118DIA ± .004
(3.000DIA ± .100)
(8.890)
AB C
0.250
(6.350)
.450
(11.430) 4.550
(115.57)
0.157 ± 0.004
(4.000 ± 0.100 )
0.089
(2.26)
(127.350)
(133.350)
1.375
(34.925)
0.118
(3.000)
0.200 Min
(5.08 Min)
(3.81 Max)
0.175
(4.45)
0.387 ± 0.062
(9.84 ± 1.59)
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
16M x 8-Bit
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).
