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Memory Module Specification
DESCRIPTION:
This document describes ValueRAM's 128M x 64-bit 1GB (1024MB) DDR400 CL3
SDRAM (Synchronous DRAM) memory module. The components on this module include
sixteen 64M x 8-bit (16M x 8-bit x 4 Bank) DDR400 SDRAM in FBGA packages. This 200-
pin SODIMM (Small Outline 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 (tRC) 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)
Operating 5.408 W (Operating)
UL Rating 94 V - 0
Document No. VALUERAM0366-001.A00
11/29/04
Figure 1: KVR400X64SC3A/1G 200-Pin SODIMM
KVR400X64SC3A/1G
1GB 128M x 64-Bit DDR400
CL3 200-Pin SODIMM
2.66
2.50
Units : Inches (Millimeters)
Full R 2x
0.17
(4.20)
0.456
11.40
1.896
(47.40)
0.24
(6.0)
0.086
0.79
(20.00)
2.15
(63.60)
(67.60)
2-
f
0.07
(1.80)
1.25
(31.75)
0.16
±
0.039
(4.00
±
0.10)
0.096
(2.40)
0.07
(1.8)
1 39 41 199
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).
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