Kingston KVR400S4R3A1G User Manual

Memory Module Specification

KVR400S4R3A/1G

1GB 128M x 72-Bit DDR400

CL3 Registered 184-Pin ECC DIMM

DESCRIPTION:

This document describes ValueRAM's 128M x 72-bit 1GB (1024MB) DDR400 CL3
SDRAM (Synchronous DRAM) Registered ECC memory module. The components on this
module include eighteen 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 9.672 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).

5.25 ± 0.005

0.78

(19.80)

0.0787
R (2.00)

(133.350 ± 0.13)

5.171

(131.350)

5.077

(128.950)

A B

A B

0.118
(3.00)

1.2
(30.48)

0.7

0.393

0.1 00 Min

(2. 50 Mi n)

(17.80)

(10.00)

(2.30 M in)

0.157 Max

(3.99 Max)

(4.00)

(0. 157)

Figure 1: KVR400S4R3A/1G 184-Pin DIMM

Part No. VALUERAM0419-001.A00

0.050 ± 0.0039
(1.270 ± 0.10)

05/13/05