Memory Module Specification
DESCRIPTION:
This document describes ValueRAM's 128M x 72-bit 1GB (1024MB) DDR333 CL2.5
SDRAM (Synchronous DRAM) dual rank Registered ECC memory module. The compo-
nents on this module include eighteen 64M x 8-Bit (16M x 8-Bit x 4 Bank) 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 (IDD0) 6.125 W (operating)
UL Rating 94 V - 0
Document No. VALUERAM0380-001.A00
03/11/05
Figure 1: KVR333X72BRC25/1GD 184-Pin DIMM
KVR333X72BRC25/1GD
1GB 128M x 72-Bit DDR333
CL2.5 Registered 184-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 1.200" (30.48mm).
133.35 A
128.95 A
2x 3.00 MIN W1
4x 4.00+/-0.1 V1
64.77 P2 49.53 P3
120.65 P1
28.575 +/-0.15
6.35
10.00 B2
1 92
Units : Millimeters
3.99 MAX
12.00
18493
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