Kingston KVR400D2E3K24G User Manual

Memory Module Specification

KVR400D2E3K2/4G

4GB (2GB 256M x 72-Bit x 2 pcs.)

DDR2-400 CL3 ECC 240-Pin DIMM Kit

DESCRIPTION:

ValueRAM's KVR400D2E3K2/4G is a kit of two 256M x 72-bit 2GB (2048MB) DDR2-400
CL3 SDRAM (Synchronous DRAM) ECC memory modules. Total kit capacity is 4GB
(4096MB). The components on each module include eighteen 128M x 8-bit (16M x 8-bit x 8
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 2.615 W (operating per module)
UL Rating 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).

Units : Millimeters

4.00

30.00

1.27 ± 0.10

3.00

4.00

2.50

5.00

Detail A

63.00

1.50±0.10

4.00

3.80

A

133.35

2.50±0.20

B

Detail B

1.00

55.00

0.80±0.05

0.20

4.00

Figure 1: KVR400D2E3K2/4G 240-Pin DIMM

Document No. VALUERAM0510-001.A00

08/29/06