Module Dimensions
Figure 3: 240-Pin DDR2 RDIMM
Pin 1
17.78 (0.7)
TYP
2.5 (0.098) D
(2X)
2.3 (0.091) TYP
5.0 (0.197) TYP
123.0 (4.840)
TYP
1.0 (0.039)
TYP
0.8 (0.031)
TYP
2.0 (0.079) R
(4X)
0.76 (0.03) R
Pin 120
Front view
133.5 (5.256)
133.2 (5.244)
63.0 (2.48)
TYP
55.0 (2.165)
TYP
10.0 (0.394)
TYP
Back view
Pin 240
Pin 121
1.37 (0.054)
1.17 (0.046)
4.0 (0.157)
MAX
70.66 (2.782)
TYP
2.21 (0.087) TYP
3.04 (0.1197)
TYP
1.0 (0.039) TYP
30.5 (1.2)
29.85 (1.175)
U1 U2 U3 U4 U5
U8
U6
U9 U10 U11 U12
U13 U14 U15 U16
U17
U18 U19 U20 U21 U22
45° (4X)
U7
Notes:
1. All dimensions are in millimeters (inches); MAX/MIN or typical (TYP) where noted.
2. The dimensional diagram is for reference only.
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Micron and the Micron logo are trademarks of Micron Technology, Inc.
All other trademarks are the property of their respective owners.
This data sheet contains minimum and maximum limits specified over the power supply and temperature range set forth herein.
Although considered final, these specifications are subject to change, as further product development and data characterization some-
times occur.
1GB, 2GB, 4GB (x72, ECC, SR) 240-Pin DDR2 SDRAM RDIMM
Module Dimensions
PDF: 09005aef83dadad1
htf18c128_256_512x72pz - Rev. C 1/11 EN
16
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