Kingston KVR400D4R3A2G User Manual

Memory Module Specification

KVR400D4R3A/2G

2GB 256M x 72-Bit DDR400 CL3

Registered 184-Pin ECC DIMM

DESCRIPTION:

This document describes ValueRAM's 256M x 72-bit 2GB (2048MB) DDR400 CL3
SDRAM (Synchronous DRAM) "dual rank" Registered ECC memory module. The compo­nents on this module include thirty-six 128M x 4-bit (32M x 4-Bit x 4 bank) DDR400
SDRAM in FBGA packages. This 184-pin 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)
Power 11.024 W (operating)
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 1.200" (30.48mm).

(Units = millimeters)

Figure 1: KVR400D4R3A/2G 184-Pin DIMM

Document No. VALUERAM0426-001.A00

05/21/05