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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 sometimes occur.
1GB, 2GB (x72, SR) 240-Pin DDR2 SDRAM FBDIMM
Module Dimensions
pdf: 09005aef81a2f214/source: 09005aef81a2f22d Micron Technology, Inc., reserves the right to change products or specifications without notice.
HTF18C64_128_256x72F.fm - Rev. B 9/07 EN
16 ©2005 Micron Technology, Inc. All rights reserved.
Module Dimensions
Figure 4: 240-Pin DDR2 FBDIMM
Notes: 1. All dimensions are in millimeters (inches); MAX/MIN or typical (TYP) where noted.
2. The dimensional diagram is for reference only. Refer to the JEDEC MO document for addi-
tional design dimensions.
30.5 (1.201)
30.2 (1.189)
Pin 1
17.3 (0.681)
TYP
2.60 (0.102) D
(2X)
5.2 (0.205)
TYP
5.0 (0.197) TYP
123.0 (4.843)
TYP
1.0 (0.039)
TYP
0.80 (0.031)
TYP
1.5 (0.059) R
(4X)
0.75 (0.03) R
Pin 120
Front view
133.50 (5.256)
133.20 (5.244)
67.0 (2.638)
TYP
51.0 (2.01)
TYP
9.5 (0.374)
TYP
Back view
Pin 240
Pin 121
1.25 (0.0492)
TYP
66.68 (2.63) TYP
0.595 (0.0234) R
2.0 (0.079)
TYP
3.9 (0.153)
TYP
(x2)
120° (2X)
2.18 (0.086) TYP
74.68 (2.94)
TYP
3.05 (0.120) TYP
66.68 (2.63)
TYP
24.95 (0.982)
TYP
Detail A
Detail A
1.19 (0.047)
1.06 (0.042)
1.06 (0.042)
45° x 0.18 (0.0071)
0.5 (0.02) R
(4X)
0.75 (0.030) R 8X
9.9 (0.39)
TYP
(4X)
Front view with heat spreader
Back view with heat spreader
3.1 (0.122) TYP
5.48 (0.216)
TYP
U1
U20
U2 U3 U4
U5
U6 U7 U8 U9
U10 U11
U12
U13
U14
U15
U16
U17 U18
U19
U20
1
1
1
1.37 (0.054)
1.17 (0.046)
5.1 (0.201)
MAX
7.92 (0.312)
MAX
1.37 (0.054)
1.17 (0.046)
