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Memory Module Specification

Document No. VALUERAM0396-001.A00

03/22/05

DESCRIPTION:

This document describes ValueRAM's 64M x 72-bit (512MB) DDR2-400 CL3 SDRAM

(Synchronous DRAM) "single rank" registered ECC "Intel® Certified" memory module.The

components on this module include nine 64M x 8-bit (16M x 8-bit x 4 Bank) DDR2-400

SDRAM in FBGA packages. This 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 2.277 W (operating)

UL Rating 94 V - 0

Figure 1: KVR400D2S8R3/512I 240-Pin DIMM

KVR400D2S8R3/512I

512MB 64M x 72-Bit DDR2-400

CL3 Registered 240-Pin ECC DIMM

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)

Memory Module SpecificationDocument No. VALUERAM0396-001.A0003/22/05DESCRIPTION:This document describes ValueRAM's 64M x 72-bit (512MB) DDR2-400

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Kingston Technology KVR400D2S8R3/512I Datenblatt