Module Dimensions
Figure 3: 240-Pin DDR3 UDIMM
30.50 (1.20)
29.85 (1.175)
Pin 1
17.3 (0.68)
TYP
2.50 (0.098) D
(2X)
2.30 (0.091) TYP
5.0 (0.197) TYP
123.0 (4.84)
TYP
1.0 (0.039)
TYP
0.80 (0.031)
TYP
0.75 (0.03) R
(8X)
0.76 (0.030) R
Pin 120
Front view
133.50 (5.256)
133.20 (5.244)
47.0 (1.85)
TYP
71.0 (2.79)
TYP
9.5 (0.374)
TYP
Back view
Pin 240
Pin 121
1.37 (0.054)
1.17 (0.046)
4.0 (0.157)
MAX
2.20 (0.087) TYP
1.45 (0.057) TYP
3.05 (0.12) TYP
54.68 (2.15)
TYP
3.0 (0.118) 4X TYP
23.3 (0.92)
TYP
0.50 (0.02) R
(4X)
0.9 (0.035) TYP
1.0 (0.039) R (8X)
15.0 (0.59)
TYP (4X)
3.1 (0.122) 2X TYP
5.1 (0.2) TYP
U1 U2 U3 U4 U5
U10
U6
U7
U8
U9
U11 U12 U13 U14 U15 U16 U17 U18 U19
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.
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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.
2GB, 4GB (x72, ECC, DR) 240-Pin DDR3 UDIMM
Module Dimensions
PDF: 09005aef83606b46
jsf18c256_512x72az.pdf – Rev. C 3/11 EN
16
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© 2009 Micron Technology, Inc. All rights reserved.
