Kingston KVR333S4R251G User Manual

Memory Module Specification

KVR333S4R25/1G

1GB 128M x 72-Bit DDR333

CL2.5 Registered 184-Pin ECC DIMM

DESCRIPTION:

This document describes ValueRAM's 128M x 72-bit 1GB (1024MB) DDR333 CL2.5
SDRAM (Synchronous DRAM) "single rank" Registered ECC memory module. The com­ponents on this module include eighteen 128M x 4-bit DDR333 SDRAM in FBGA packages.
This 184-pin DIMM uses gold contact fingers and requires +2.5V. The electrical and
mechanical specifications are as follows:

FEATURES:

Clock Cycle Time (tCK) 6ns (min.) / 12ns (max.)
Row Cycle Time (tRC) 60ns (min.)
Refresh Row Cycle Time (tRFC) 72ns (min.)
Row Active Time (tRAS) 42ns (min.) / 70,000ns (max.)
Single Power Supply of +2.5V (+/- .2V)
Power 6.600 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

0.118
(3.00)

0.7

0.393

(10.00)

0.1 00 Min

(2.30 M in)

(2. 50 Mi n)

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

(17.80)

1.2
(30.48)

0.157 Max

(3.99 Max)

Figure 1: KVR333S4R25/1G 184-Pin DIMM

Part No. VALUERAM0446-001.A00

(4.00)

(0. 157)

0.050 ± 0.0039
(1.270 ± 0.10)

06/21/05