Memory Module Specification
DESCRIPTION:
ValueRAM's KVR400D2E3K2/1G is a kit of two 64M x 72-bit (512MB) DDR2-400 CL3
SDRAM (Synchronous DRAM) ECC memory modules. Total kit capacity is 1GB (1024MB).
The components on each module include nine 64M x 8-bit (16M x 8-bit x 4 Bank) DDR2-400
SDRAM in FBGA packages. Each 240-pin DIMM uses gold contact fingers and requires
+1.8V. The electrical and mechanical specifications are as follows:
FEATURES:
Clock Cycle Time (tCK) CL=3 5ns (min.) / 8ns (max.)
Row Cycle Time (tRC) 55ns (min.)
Refresh to Active/Refresh Command Time (tRFC) 105ns
Row Active Time (tRAS) 40ns (min.) / 70,000ns (max.)
Single Power Supply of +1.8V (+/- .1V)
Power 2.592 W (operating per module)
UL Rating 94 V - 0
Document No. VALUERAM0391-001.A00
03/21/05
Figure 1: KVR400D2E3K2/1G 240-Pin DIMM
KVR400D2E3K2/1G
1GB (512MB 64M x 72-Bit x 2 pcs.)
DDR-400 CL3 ECC 240-Pin DIMM Kit
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).
1.27 ± 0.10
4.00
Units : Millimeters
A
B
63.00
55.00
30.00
133.35
2.50
1.00
0.20
2.50±0.20
Detail B
5.00
Detail A
4.00
1.50±0.10
0.80±0.05
4.00
3.80
3.00
4.00
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